I have a 03 6 spd maxima..it ran out of gas becaz my gas gauge is wayyy off...anyways i made the mistake of spraying brake cleaner in the throttle body to see if it would run., i never sprahed it threw the mass air tho...i changed the fuel filtee also..now it will not rev at full throttle...it had check engine light instantly once i put more gas in it...it threws codes for mass air..i didnt save them but cleared it and it hasent came right back on...ive did all the rel learn processes the best i can...is it possible i ruined the throttle body by spraying break cleaner in it...im really trying to save a trip to the stealership...thanks guys

 

What is brake cleaner? Perhaps if you told us what chemical you sprayed into the intake we'll be able to get an idea. Sounds to me as if you have damaged the MAF sensor.

 

you could try cleaning the mass air flow with MAF CLEANER. If you have a bad MAF, sometimes you're car will turn off on idle. Mine would turn off after putting gas. Put a new MAF and turns on and runs normal. Also, it will make acceleration way better. I doubt the throttle body is bad.

 

Its brake cleaner..kinda like parts cleaner...how would it do anything to my maf if i took it completely off when i sprayed into the throttle body? I also unpluged the connector that pluggs into the throttle body while it was running...so it deff needed to re learn something and ive tried them all

 

What specific product was it? You may have to go back and re read the label to make sure it wasn't one of the ones that have warnings about using on fuel injected sys,

Wait it's brake cleaner on a tb
Let me guess you moved the butterfly valve to spray inside there?

There's solvents such as these that can eat gaskets and totally screw up your ride .

I really hope you didn't cost yourself a lot of moolah!!

 

Meh, I use brake cleaner to clean everything. It's cheap starting fluid, too.

Did you try an ECU reset?

 

many vehicles with a bad fuel pump or whatever ive run for a small distance by spraying brake cleaner into the intake manifold without problem

 

Where thay at tho?(ti voice) jkjk but were they 03 maximas?

 

I've done it multiple times on maximas. Cleaned TB and MAF with it. It doesn't hurt anything.

 

Well I'll guess he just moved the tb valve trying to spray into it.effed it up and just added to his underlying issues that began with a faulty gas gauge, just a guess ...

 

yep ran a couple of 5th gens on it and cleaned the MAF with brake cleaner no problem. brake cleaner isnt overly different from starting fluid or MAF cleaner

 

Sample Brake Parts Cleaner MSDS
COMPONENT CAS NUMBER % by Wt.
Methanol 67-56-1 40 – 50
Toluene 108-88-3 15 – 25
Heptane 142-82-5 / 64742-49-0 15 – 25
Acetone 67-64-1 5 – 15
Carbon dioxide 124-38-9 5 – 10

Sample MAF Sensor Cleaner MSDS
Chemical name Common name and synonyms CAS number %
Naphtha (petroleum), hydrotreated 64742-49-0 light 80 - 90
Carbon dioxide 124-38-9 5 - 10
2,2,4-Trimethylpentane 540-84-1 3 - 5
n-Hexane 110-54-3 3 - 5
Methanol 67-56-1 < 1

** Naptha generally evaporates quickly and will not leave a residue.

 

sounds like either a bad MAF or a bad fuel pump cause sometimes when the fuel pump goes bad the gas gauge goes bad too. Idk how these fuel pumps are built but a lot of times the float is on the fuel pump. might also be a fuel pump fuse. Sometimes when you run out of gas the fuel pump fuse blows I would disconnect a fuel line and turn the key to see if your getting fuel pressure then you will know if its a fuel system problem or an electrical problem.

 

I thought so...so not the equivalent of wiping with toilet paper vs wiping with poison oak leaves but ,rather wiping with charmin vs news paper correct?

 

Did you spray into the TB or from the black housing?

 

if you sprayed the TB and moved the flap manually then you probably messed it up, suppose to turn the ignition on put it in a gear and have the gas held down with a stick or something then spray it never touch the flap TB are sensitive

 

Sample Brake Parts Cleaner MSDS
COMPONENT CAS NUMBER % by Wt.
Methanol 67-56-1 40 – 50
Toluene 108-88-3 15 – 25
Heptane 142-82-5 / 64742-49-0 15 – 25
<B>Acetone 67-64-1 5 – 15 </B>
Carbon dioxide 124-38-9 5 – 10

Acetone!!! Dissolves many plastics! The last thing I would want near sensitive sensors.

 

The actual sensor pieces are metal, plus it evaps almost instantly. You would have to dunk plastic in it for a long time.

 

...Iv cleaned into my TB/manually moving the butterfly to spray deep as possible....watched a lot of black gunk drip back out. No ill effects...after the one "expected" rough start. Used chemtool B12

 

Seems like I'm missing a serious point here...


1. you removed the MAF to spray into the TB?


2. you disconnected the connection for the MAF to spray into the TB?


3. you disconnected both TPS connections while it was running?

 

I just took off the black rubber intake off the throttle body and yes i opened the butterfly and sprayed in there...i got a new mass air today and put it in and same problem...i had batt unhooked for days before i put new sensor in and when i start i instantly got codes p0102 p1800 and p0113

 

disconnecting the battery does nothing

reset ecu, reset idle

 

Did the reset and it made my check engine light stay on...i had cleared it earlier..seems to rev alittle better but still breaks up...its been starting really hard too...just dont get it...to much technology for me i guess haha

 

junkyard maf time

 

LOL @ foreign solvent. Good choice of words haha...not to laugh at your issues dude..

If you didn't touch the MAF, but you did touch the butterfly valve on the 02-03 Maxima that's a bad idea. On the 00-01 it's no big deal with the cable wire but the DBW on the 5.5gens thats a BAD idea...especially spraying any solvent in there, much less brake cleaner (especially if it was chlorinated, non-chlorinated is not as bad)

That said, many people have done similar as you and had the same problems, with many different solvents. Most people got a CEL after doing this.... For very few people, doing the idle relearn procedure has worked. For most others, they had to take it to the dealer to get the idle relearn done because the self-procedure doesn't seem to work well for everyone's cars...

That said, some people have even needed a new TB thanks to doing this. The only accepted safe way to clean the 02-03 TB is to disconnect all the sensors, battery, and use only lint-free rag with possibly a bit of carb/tb cleaner and never move the butterfly manually.

All this info you will find if you search around here a bunch.

 

He said he got a new maf...so he need to buy the tb now probably can't get money back for the new maf but he's gonna need it one day...(soon).

 

Did you buy an OEM maf, OP? Ebay ones are VERY hit or miss.

 

Anything ive searched for on the forums everyone says they only have the idle problem after cleaning the TB not the rev problem...if i hold the throttle quarter thorttle i can get it to rev as high as i want but if i floor it, it just starves the motor..i got a delphi MAF off amazon

 

That Delphi MAF is likely no good...OEM only for MAF. And the rev problem you have now does sound like MAF.

 

Have you tried the old maf?

 

I pick up used OEM MAFs from salvage yards then keep one in the garage for when I need it..