MAXIMA_STYLE

iTrader: (21)

Ok, so i got a p0430 code ive had for a while,ive been ignoring it.....would a set of headers solve this issue??? or a new cat?? obviously headers are cheaper than a new cat that why im opting for this ....

20Max03

iTrader: (1)

o2 simulator instead of a new cat?

HotshotVQ35

iTrader: (5)

MAXIMA_STYLE

iTrader: (21)

yea but that still leaves a bad cat robbing performance and mileage and i drive 1000 miles a week...

Rods03Max619

iTrader: (5)

Beats me dont even know what the cobe is for but if it say a o2 stimulator do that, if it say the pre-cats are bad order some Cattman headers cause I'min Cali. and cost 850 plus just for the rear pre cat.

Grand_hustle17

iTrader: (22)

+1

Mr. Brett

iTrader: (7)

Oh my god. Not another header thread.

Mr. Brett

iTrader: (7)

On a side note, here's what your code means:

P0011 - IVT Control (Bank 1)
P0021 - IVT Control (Bank 2)
P0031 - Heated Oxygen Sensor 1 Heater Low Voltage (Bank 1)
P0032 - Heated Oxygen Sensor 1 Heater Low Voltage (Bank 2)
P0037 - Heated Oxygen Sensor 2 Heater Low Voltage (Bank 1)
P0038 - Heated Oxygen Sensor 2 Heater Low Voltage (Bank 2)
P0051 - Heated Oxygen Sensor 1 Heater High Voltage (Bank 1)
P0052 - Heated Oxygen Sensor 1 Heater High Voltage (Bank 2)
P0057 - Heated Oxygen Sensor 2 Heater High Voltage (Bank 1)
P0058 - Heated Oxygen Sensor 2 Heater High Voltage (Bank 2)
P0100 - Mass Air Flow Sensor
P0101 - Mass Air Flow Sensor Circuit Range / Performance Problem
P0102 - Mass Air Flow Sensor Circuit Low Input
P0103 - Mass Air Flow Sensor Circuit High Input
P0105 - Absolute Pressure Sensor
P0107 - Absolute Pressor Sensor Circuit Low Input
P0108 - Absolute Pressor Sensor High Input
P0110 - Intake Air Temperature Sensor
P0112 - Intake Air Temperature Sensor Circuit Low Input
P0113 - Intake Air Temperature Sensor Circuit High Input
P0115 - Engine Coolant Temperature Sensor Circuit
P0117 - Engine Coolant Temperature Sensor Circuit Low Input
P0118 - Engine Coolant Temperature Sensor Circuit High Input
P0120 - Throttle Position Sensor
P0122 - Throttle Position Sensor 2 Circuit Low Input
P0123 - Throttle Position Sensor 2 Circuit High Input
P0125 - Insufficient Engine Coolant Temperature For Closed Loop Fuel Control
P0127 - Intake Air Temperature Too High
P0128 - Thermostat Malfunction
P0130 - Front O2 Sensor Circuit (Bank 1)
P0131 - Front O2 Sensor (Lean) (Bank 1)
P0132 - Heated Oxygen Sensor 1 Circuit High Voltage (Bank 1)
P0133 - Heated Oxygen Sensor 1 Circuit Slow Response (Bank 1)
P0134 - (2000-2001) Front O2 Sensor High Input (Bank 1)
P0134 - (2002-2003) Heated Oxygen Sensor 1 Circuit No Activity Detected (Bank 1)
P0135 - Front O2 Sensor Heater (Bank 1)
P0137 - Rear O2 Sensor Low Input (Bank 1)
P0138 - Heated Oxygen Sensor 2 Circuit High Voltage (Bank 1)
P0139 - Heated Oxygen Sensor 2 Circuit Slow Response (Bank 1)
P0140 - Rear O2 Sensor High Input (Bank 1)
P0141 - Rear O2 Sensor Heater (Bank 1)
P0150 - Front O2 Sensor Circuit (Bank 2)
P0151 - Front O2 Sensor (Lean) (Bank 2)
P0152 - Heated Oxygen Sensor 1 Circuit High Voltage (Bank 2)
P0153 - Heated Oxygen Sensor 1 Circuit Slow Response (Bank 2)
P0154 - (2000-2001) Front O2 Sensor High Input (Bank 2)
P0154 - (2002-2003) Heated Oxygen Sensor 1 Circuit No Activity Detected (Bank 2)
P0155 - Front O2 Sensor Heater (Bank 2)
P0157 - Rear O2 Sensor Low Input (Bank 2)
P0158 - Heated Oxygen Sensor 2 Circuit High Voltage (Bank 2)
P0159 - Heated Oxygen Sensor 2 Circuit Slow Response (Bank 2)
P0160 - Rear O2 Sensor High Input (Bank 2)
P0161 - Rear O2 Sensor Heater (Bank 2)
P0171 - Fuel Injection System Too Lean (Bank 1)
P0172 - Fuel Injection System Too Rich (Bank 1)
P0174 - Fuel Injection System Too Lean (Bank 2)
P0175 - Fuel Injection System Too Rich (Bank 2)
P0180 - Fuel Tank Temperature Sensor
P0181 - Fuel Tank Temperature Sensor Circuit Range / Performance
P0182 - Fuel Tank Temperature Sensor Low Input
P0183 - Fuel Tank Temperature Sensor High Input
P0217 - Coolant Over Temperature Enrichment Protection
P0221 - Throttle Position Sensor Circuit Range / Performance Problem
P0222 - Throttle Position Sensor 1 Circuit Low Input
P0223 - Throttle Position Sensor 1 Circuit High Input
P0226 - Accelerator Pedal Position Sensor Circuit Range / Performance Problem
P0227 - Accelerator Pedal Position Sensor 1 Circuit Low Input
P0228 - Accelerator Pedal Position Sensor 1 Circuit High Input
P0300 - Multiple Cylinder Misfire Detected
P0301 - Cylinder 1 Misfired Detected
P0302 - Cylinder 2 Misfired Detected
P0303 - Cylinder 3 Misfired Detected
P0304 - Cylinder 4 Misfired Detected
P0305 - Cylinder 5 Misfired Detected
P0306 - Cylinder 6 Misfired Detected
P0325 - Knock Sensor
P0327 - Knock Sensor Circuit Low Input
P0328 - Knock Sensor Circuit High Input
P0335 - Crankshaft Position Sensor Circuit
P0340 - Camshaft Position Sensor (Phase) Circuit (Bank 1)
P0345 - Camshaft Position Sensor (Phase) Circuit (Bank 2)
P0400 - EGR Function (Close)
P0403 - EGR Volume Control Valve Circuit
P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
P0430 - Catalyst System Efficiency Below Threshold (Bank 2)
P0440 - EVAP Control System Small Leak
P0441 - EVAP Control System Incorrect Purge Flow
P0442 - EVAP Control System Small Leak Detected (Negative Pressure)
P0443 - EVAP Canister Purge Volume Control Solenoid Valve Circuit
P0444 - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open
P0445 - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted
P0446 - EVAP Canister Vent Control Valve Circuit
P0447 - EVAP Canister Vent Control Valve Circuit Open
P0450 - EVAP Control System Pressure Sensor
P0452 - EVAP Control System Pressure Sensor Low Input
P0453 - EVAP Control System Pressure Sensor High Input
P0455 - EVAP Control System Gross Leak
P0456 - EVAP Emission Control System Very Small Leak (Negative Pressure Check)
P0460 - Fuel Level Sensor Circuit Noise
P0461 - Fuel Level Sensor Circuit Range / Performance
P0462 - Fuel Level Sensor Circuit Low Input
P0463 - Fuel Level Sensor Circuit High Input
P0464 - Fuel Level Sensor Circuit
P0500 - Vehicle Speed Sensor
P0505 - Idle Air Control Valve / Auxiliary Air Control Valve
P0506 - Idle Speed Control System RPM Lower Than Expected
P0507 - Idle Speed Control System RPM Higher Than Expected
P0510 - Closed Throttle Position Switch
P0550 - Power Steering Pressure Sensor Circuit
P0600 - A/T Communication Line
P0605 - Engine Control Module (ECM)
P0650 - Malfunction Indicator (MIL) Control Circuit
P1065 - ECM Power Supply Circuit
P1102 - Mass Air Flow Sensor Circuit Range / Performance Problem
P1121 - Electric Throttle Control Actuator
P1121 - ABS / TCS Control Unit Performance
P1122 - Electric Throttle Control Performance Problem
P1124 - Throttle Control Motor Relay Circuit Short
P1126 - (2000-2001) Thermostat Function
P1126 - (2002-2003) Throttle Control Motor Relay Circuit Open
P1128 - Throttle Control Motor Relay Circuit Short
P1130 - Swirl Control Valve Control Solenoid Valve
P1143 - Heated Oxygen Sensor 1 Lean Shift Monitoring (Bank 1)
P1144 - Heated Oxygen Sensor 1 Rich Shift Monitoring (Bank 1)
P1146 - Heated Oxygen Sensor 2 Minimum Voltage Monitoring (Bank 1)
P1147 - Heated Oxygen Sensor 2 Maximum Voltage Monitoring (Bank 1)
P1148 - Closed Loop Control (Bank 1)
P1163 - Heated Oxygen Sensor 1 Lean Shift Monitoring (Bank 2)
P1164 - Heated Oxygen Sensor 1 Rich Shift Monitoring (Bank 2)
P1165 - Swirl Control Valve Control Vacuum Check Switch
P1166 - Heated Oxygen Sensor 2 Minimum Voltage Monitoring (Bank 2)
P1167 - Heated Oxygen Sensor 2 Maximum Voltage Monitoring (Bank 2)
P1168 - Closed Loop Control (Bank 2)
P1211 - ABS/TCS Control Unit
P1212 - ABS / TCS Communication Line
P1217 - Engine Over Temperature
P1223 - Throttle Position Sensor 2 Circuit Low Input
P1224 - Throttle Position Sensor 2 Circuit High Input
P1225 - Closed Throttle Position Learning Performance Problem
P1226 - Closed Throttle Position Learning Performance Problem
P1227 - Accelerator Pedal Position Sensor 2 Circuit Low Input
P1228 - Accelerator Pedal Position Sensor 2 Circuit High Input
P1229 - Sensor Power Supply Circuit Short
P1320 - Ignition Signal
P1335 - Crankshaft Position Sensor (REF)
P1336 - Crankshaft Position Sensor (POS) (COG)
P1401 - EGR Temperature Sensor
P1402 - EGR Function (Open)
P1440 - EVAP Control System Small Leak
P1444 - EVAP Canister Purge Volume Control Solenoid Valve
P1446 - EVAP Canister Vent Control Valve Closed
P1447 - EVAP Emission Control System Purge Flow Monitoring
P1448 - EVAP Canister Vent Control Valve Open
P1456 - EVAP Emission Control System Very Small Leak (Positive Pressure Check)
P1464 - Fuel Level Sensor Circuit Ground Signal
P1490 - Vacuum Cut Valve Bypass Valve Circuit
P1491 - Vacuum Cut Valve Bypass Valve Circuit
P1564 - Automatic Speed Control Device Steering Switch
P1572 - Automatic Speed Control Device Brake Switch
P1574 - Automatic Speed Control Device Vehicle Speed Sensor
P1605 - A/T Diagnosis Communication Line
P1706 - Park / Neutral Position Switch
P1800 - VIAS Control Solenoid Valve Circuit Open
P1805 - Brake Switch
P2122 - Accelerator Pedal Position Sensor 1 Circuit Low Input
P2123 - Accelerator Pedal Position Sensor 1 Circuit High Input
P2127 - Accelerator Pedal Position Sensor 2 Circuit Low Input
P2128 - Accelerator Pedal Position Sensor 2 Circuit High Input
P2135 - Throttle Position Sensor Circuit Range / Performance Problem
P2138 - Accelerator Pedal Position Sensor Circuit Range / Performance Problem
U1000 - CAN Communication Line
U1001 - CAN Communication Line

In my honest opinion, you'd probably be better off taking it to a shop and paying them $100 to weld in a straight-piped piece. You'll still have two other functioning cats in place, so you'll be just fine.

I'd get it taken care of as soon as possible. A clogged/failing cat can cause serious and irreversible damage to your engine.

Grand_hustle17

iTrader: (22)

Man ive seen some funny internet pics but my god this one literally had me rolling

MAXIMA_STYLE

iTrader: (21)

hey sorry to bore you all but come on....lol....i dont know enough about these so called bullsh*t precats to know which route to go....you think an exhaust shop will cut it off and weld a straight pipe??? isnt that illegal(not that i care) LOL.

Mr. Brett

iTrader: (7)

It is. You just have to find a shop where money talks before legalities do.



Just don't run around flaunting that you're missing a cat. If the shop puts the heat shield back on after the install, without tearing the car apart, it'd be impossible to tell.

Grand_hustle17

iTrader: (22)

no shop will not do it... you really only have 2 choices, get the cats or headers

MAXIMA_STYLE

iTrader: (21)

so headers it is...thats obviously cheaper and better for power anyhow...custom maxima has some nice looking headers...

Mr. Brett

iTrader: (7)

Nooooope. Don't do it. Just trust me. Don't do it.

If you need something in a pinch that's going to give you good gains, look around for a set of OBX headers. Other people that have had those ones Custom Maxima sells have had issues with them rusting.

You could also go the Y-pipe route. Correct me if I'm wrong, but doesn't the Cattman Y delete the precats?

MAXIMA_STYLE

iTrader: (21)

yeah but im not looking to spend an arm and a leg with 197k on the car...190 isnt too bad cattman is EXPENSIVE and i dont prefer to spend that with that kind of mileage right now....

auveeb

iTrader: (3)

New motors can be had for as low as $500, you just have to look.

MAXIMA_STYLE

iTrader: (21)

actually LKQ a worldwide parts dealer(junkyard as we call them) sell these motors for as little as 370 up to 600 with decent mileage...

Grand_hustle17

iTrader: (22)

Car-parts.com... got my motor with 71K freighted from North Dakota to Maryland for $600 (includes the price of the motor of coarse)

MAXIMA_STYLE

iTrader: (21)

thats not bad at all

e-subliminal-2

iTrader: (7)

Welll. To go cheap and get rid of your ses if you don't wantcrazy money. Buy an o2 sim and gut your cats.

crazy97

iTrader: (1)

Yes. Too bad the 3.5 wasnt set up like that..

DCZC

spend $200 and get a warpspeed Y SHIPPED.

they delete the pre cats, give decent gains, and solve your problem. Unless it's tHE ACTUAL CAT ITSELF IN WHICH YOU WOULD JUST REPLACE THAT. Hope that helps

MAXIMA_STYLE

iTrader: (21)

where can i get the warpspeed y pipe from???

DCZC

Ebay, warpspeed.com, etc. Wait a day of two as I have emailed the company and asked if they would be willing to put together a group deal for us on the .org ;-)

MAXIMA_STYLE

iTrader: (21)

this isnt exactly something id be doing this week anyhow next thing on my list of to do things is my suspension...unless the price for the pipe is a drastic change....i got cali emissions....a new set of headers comes with a ypipe whats the difference in gains and fule mileage between the two?

DCZC

Well I know the headers setups will cost more for anything worth putting an your car.

Mileage

jowo9

iTrader: (1)

-From what I can gather, you get the most gain from getting rid of your pre-cats, which improves exhaust flow. In the 5th gen, the precats are in the Y-pipe, so replacing that will yield the bests gains. In the 5.5 gen, the precats are in the stock manifold (headers), so replacing that will yield the best gains. Of course you'll see the most gains on either 5th or 5.5 gen by doing both, but if you're on a budget and have a 5th gen, I'd think a Y-pipe would be by far the best option for the money

PBMAXX

iTrader: (4)

I had the same code and I replaced the Pre-cat which is closest to the radiator. I used a Catco Direct Fit and the code cleared. $175 for pre-cat $80 to install.

MAXIMA_STYLE

iTrader: (21)

yeah so 200 for the ypipe is actually the best bet...i was going to buy custommaxima headers but another orger said his buddies rusted out...i need to contact custom maxima about this because they claim they are stainless.....if they can guarentee they wont rust ill buy headers for 190 cause they come with a new ypipe

asianstyle

iTrader: (1)

warpspeed y-pipe only gets rid of one cat not both as someone mentioned on here. i have the same p0430 code right now and was contemplating on what route to go. dont have that much $$ to spend either. I have a warpspeed y-pipe b/c I had bank 1 below threshold code and the y-pipe deleted this cat. and fixed the problem but on our 5th gen on bank two is another precat that looks like an elbow. comes right off the manifold. maxima style, what did you ever decide on?

NmexMAX

iTrader: (22)

IF your pocket deepnds on it, start with the cheapest item first.

O2 sim
new O2

byrdman164

iTrader: (4)

Correct me if Im wrong, but why would you replace the O2 sensor? Its a catalyst efficiency code, which means the cat is deteriorating and not filtering the exhaust. A new sensor (not a sim) wouldnt change a damn thing for that code. The second o2 sensor is there to monitor the catalytic converter, and ideally it wants to see a pretty much straight line voltage (which indicates a constant level of oxygen) whereas the first o2 sensor on the same bank switches between rich and lean. So for a secondary o2 sensor it wouldnt change his code whatsoever. I could understand if it were a circuit code, but this is a mechanical deficiency.

Grand_hustle17

iTrader: (22)

and when the motor sucks in all the busted catalyst then what???... get headers... now dont start another header thread! leave it at get headers.. your choice... search

NmexMAX

iTrader: (22)

The root of the cause might be a MAF.

MAXIMA_STYLE

iTrader: (21)

i decided on getting headers...probably from custom maxima to delete both cats and gain some type of performance....and now that my mufflers welds are coming undone imma be hopefully buying another members flowmaster and throwing that on too

byrdman164

iTrader: (4)

Care to elaborate?

asianstyle

iTrader: (1)

Cool let me know how they fit and how much of a performance boost you think you got.

NmexMAX

iTrader: (22)

Car runs lean, screws up cats because of lean (hot) condition. Cats in turn fail.

Lean condition caused by failed/failing cat.

byrdman164

iTrader: (4)

If the MAF were the case, wouldnt that affect both sides then? Since the MAF isnt per bank, it wouldnt really go after ONE cat, unless thats the side that happened to go first. But if the car were really running lean enough to cause damage, he would have a P0171 or P0174 for bank 1 or 2 being lean.

And also, the catalyst would run a greater risk of being damaged if it were running rich. Since the cat is designed to remove or reduce hydrocarbons in the exhaust, an excessive amount of HC's will increase the cats operating temperature and can effectively kill it.

http://en.wikipedia.org/wiki/Catalyt...erter#Meltdown
(For those who are curious)

NmexMAX

iTrader: (22)

Lean or rich, it's a MAF or O2's 'fault' that would cause this abnormal condition.

Or an intake air leak, among a few others