First of all my car has been pretty messed up lately. Normal driving i would say is ok, but I can NOT go WOT at all. Lets say I go from a 40-45 roll in 2nd (this happened when i raced an srt4), I floor it and the car does not go anywhere and i immediately bounce off the rev limiter almost like my clutch slipping which it may have been, but other things have happened to make me think otherwise. When i watch my wideband from like a 3rd gear pull from 40 the car will stay a 12.0 then climb its way quickly to 14-even16's! At that point my car stopped accelerating and felt like absolute ****. My car misfires. I can't even floor my car anymore without something bad happening and i have no idea why the afr just decided to change by itself to extremely lean when my constant afr was 11.8 .Also i went to Autozone to have them read my codes i was throwing because it would not go away ever since these problems started happening 2 weeks ago and I never had a cel even without a cat. The codes read as follow:

P0069-Their computer couldn't detect the info on this code for my car.

P0420-The PCM has determined that the catalyst system efficiency for bank 1 is below threshold for the current engine operating conditions. (Bank 1 identifies the location of cyclinder #1, while bank 2 identifies the cyclinders on the opposite bank.)

TROUBLESHOOTING P0420

Definition: Catalyst efficiency low-bank 1

Explanation: The oxygen sensors monitor the catalytic converters ability to store oxygen

Probable Causes:

1.-Catalytic Converter defective (failure possibly due to #2, 3, or 4)

2.-Engine misfire or running condition.

3.-Large vacuum leak.

4.-Engine oil leakage into exhaust-vavle guide seals, piston rings.

Somone please help me because that last one does not sound good at all

 

P0069 is a MAP sensor error. Hope that helps. Maybe you have a bad MAP sensor, and therefor your VCM has no idea what your boost level is.

 

Maybe the one on my car went bad? How would i visually know if the MAP sensor was bad or should i just replace it? That could make sense because my boost gauge jumps back and forth between 10-20psi when the car feels like crap.

bump could my MAP sensor be bad?

 

reprogram the ecm/pcm

 

im gonna try that this friday if LJavy17 is free...

 

Yes, it is possible tha the MAP sensor could have gone bad. But it rarely ever happens.

 

engine isn't blown... yet. but yeah check the connection to your map sensor cause that is what determines fuel, along with 2 other sensor, but if it doens't know the PSI it just randomly fuels the car

 

ok so it could be my oxygen sensor or my MAP sensor and the MAP sensor is located here?

And if my o2 sensors went bad do you think the dealership will replace them for me? If they dont how much money are we talking here to replace these sensors?

 

o2 sensor wouldn't cause that. but the map would. def check your connections. and yes you got it

 

Ok I unplugged the MAP and plugged it in and still a cel. Maybe if i have the car tuned again it will go away?

 

I doubt it. sensor could be shot. disconnect the battery for about 10 minutes and see what happens... but do not go WOT until you are sure it's fueling properly

 

ok im going to do that now be back in a little bit and i have been babying the car ever since this problem and it sucks i cant drive fast lol

 

I hear ya man... post up later let me know what happens

 

Ok let the battery sit unplugged for about 15 minutes. Should i try to go WOT or no? I still have a cel.

 

You could try, just if you see the afr's start to jump get out of it immediatly

 

alright ill update later and tell you what happened. Thanks Paul!

 

no prob man

 

Alright you are not gonna believe this ****! I did a pull from 3rd at like 2krpms and the afr was perfect 11.8-12.0 then when i started to get up in the rpms my afr goes crazy like 4krpms and up. When i looked at my mpg it said freaking 17! It never says that ever! I think your right about the car throwing fuel which is why i think it might be the MAP sensor but that is the least of my worries now When i came to a stop light i heard this huge ripping loud rucus noise in the engine bay and Just as i thought the belt had shredded for the 3rd time! On top of that i lost the pulley bc the shitty bolts snapped AGAIN! This is not even joking the 3rd time this has happen and i had to turn around from going to a chick's house to tell her i couldnt hangout tonight bc i had to leave my car at my house so it would die there so i didnt have to get a tow truck I am so sick of this ******* car and i have had enough with this bullshit. Now i have to order my 3rd belt yes third! And luckily i have a 2.7 pulley coming to me with the bolts and i probably still have to get the sensors replaced so it runs well and on top of all this ****, when i get up past 5-10mph i start hearing a clunking noise and it progressively gets louder as i go faster. I think my pulley is stuck somewhere by my right tire bc its coming from that side.

Cliff notes for this rant: My car is a piece of ****.

 

goddamn man. only problem I ever had was shearing both axles. other than that, never broke a belt or anything now at 22000 modded miles. I think something is missaligned, or your tensioner is shot

 

Honestly i think it was the ZZP 2.5" pulley. Ever since the day i tried installing that i had problems. The pulley did not fit on the hub properly and was off a little from the other pullies.

 

Dude that sucks..... u couldnt even go get laid to make the night better... I would of called a taxi and took all my frustration out on the chick.. lol. Good luck.

later

 

lol ya it sucks big time, but i think she is coming to pick me up soon anyways

 

Nice but now u cant get a knobber while driving... lol

later

 

lol ya...paul do you think if i try to flash the car with a new tune with hptuners the car will go back to normal? I think the car may have forgotten the tune.

 

I don't think it did. check your emissions fuse man, coulda blown that and it could screw with fueling too. but not as bad as your describing it. you could try it, but do you know what codes it is still throwing?