1) I just got an exhaust installed yesterday due to my converter being clogged and now my car idles even rougher than it used to. would an intake kit help this? and what do you think about putting one of those filter bolton kits to the stock air box?

 

why was the converter clogged?

bad O2? bad MAF? bad/leaky injector?

filter won't do jack for this problem unless your stock one is dirty.

last time tune up was done? cleaned the TB?

 

wouldnt pass inspection due to too much o2, sensor was good so me and mechanic looked at original converter. which crumbled as we tapped it. but ran smooth. i changed converter and installed 2.5 inch piping and exhaust and now it idle really rough.

didnt check maf and injectors dont leak and i just installed a regular fram filter.

tune up was done a month ago and throttle body i dont think has been cleaned. ill try that but i thought i wasnt getting any Air in and too much air leaving so thats why i thought intake.

 

you have a PROBLEM, not a tuning issue. modding your car isn't going to fix the problem you're having. you have a sensor going out somewhere that's causing your car to run rich. a catalytic convertor should never crumble and fall apart on a remotely decently running engine.

find and fix your problem and don't try to cover it up with mods.

 

too much CO2?
convertor don't just fail on their own....if it melted then something over heated inside it...IE running rich.

http://autorepair.about.com/cs/gener...a080401a_2.htm

A catalytic converter relies on receiving the proper mix of exhaust gases at the proper temperature. Some engine oil additives or engine problems that cause the mixture or the temperature of the exhaust gases to change reduce the effectiveness and life of the catalytic converter. Leaded gasoline and the over-use of fuel additives can shorten the life of a catalytic converter considerably. Even some gasket sealers and cements can poison a converter.

A catalytic converter can also fail because of certain other factors. A number of problems could occur to the catalytic converter as the result of an engine that is out of tune. Any time an engine is operating outside proper specifications, unnecessary wear and damage may be caused to the catalytic converter as well as the engine itself. The damage is often the result of an incorrect air/fuel mixture, incorrect timing, or misfiring spark plugs. Any of these conditions could lead to a catalytic converter failure or worse.



too much air leaving? i mean sure it might need to adjust to the new found flow on the exhaust..but that shouldn't take that long.

 

I just bought the car 2 weeks ago so now problems are showing. Im not trying to Mod the car yet befor fixing. Just thought if i was gonna put a cat just finish it in one try. Paid 600 for it having 110,000 miles. i dont know where else to check. ill get a diagnostic and check out whats next. but this car has never been maintained so im kinda starting from scratch.

 

try going back to a 2.25" exhaust and see if it runs better.

 

start with the diagnostic and it will tell you what's wrong with the engine.. most likely you have a bad sensor or two causing it to run really rich.

 

spoke to mechanic. no signs of sensor problems But timing is off. would that be the case because ive changed alot of stuff on this car and would timing do something about this. says that when i do timing i should change water pump. is that true. and if so how much would you think is charge for that. belt, timing and water pump?

 

are you talking about ignition timing or cam timing

 

i think cam timing, but what would you think of each price wise.

 

I have heard many great results about cleaning the throttle body. maybe try that?? but whatever it is, it should have been there before you installed your exhaust, maybe you are just hearing it more now...

Should tb cleaning be done with the car on or off?? I've heard different opinions.

And are the directions the same as for 4th gen?? http://www.motorvate.ca/mvp.php/518
any other tips??

 

what on a VE would cause it to run rich? would a faulty maf cause it to run rich due to telling the ecu wrong air ratios?
could a bad TPS not be adjusted right or not be working properly and need replacing cause it to run rich? anything that would cause it to run rich would be good to know. yes i know im a n00b

 

o2, Coolant temp, clogged injectors (I know it's not a sensor, but it will still cause it to run rich)

 

can injectors be clogged or leaky if the reistance on them is OK...my back 3 injectors ohm'd at 11.6 and the front 3 at 10.8., anyone know how to get into a diagnositic mode to check for error codes for faulty sensors?

 

in a word yes