Catalytic converter removed & intake installed, car is not running

Hot_Stang · 12-02-2007

Hi ..
im sooo freaked out
i just got back from the work shop they also don't know what is wong
i inistalled the c&l intake and removed the catalist convertor from my exhust
but now the car is not accelerating
it looks like they is something wrond
when i press the gas bedal the rpm doesn't go fuether than 2000
can u plz help me with any information i will be online now
thanks

**stlwagon** · 12-02-2007

Check your intake install. Make sure there are no air leaks. Check the connection to the MAF sensor.

Hot_Stang · 12-02-2007

Quote:

Originally Posted by stlwagon

Check your intake install. Make sure there are no air leaks. Check the connection to the MAF sensor.

i checked it more than 5 times
i the workshop did also ..
do u want me 2 shoot some pics

is it the catalist .. because i went 2 a tuner and he pluged his lap top into the car and told me that the sensor in the intake and catalist that there is to much air

**stlwagon** · 12-02-2007

Sounds like the reduction in backpressure has affected performance. Did you have the car tuned after removing it?

Hot_Stang · 12-02-2007

Quote:

Originally Posted by stlwagon

Sounds like the reduction in backpressure has affected performance. Did you have the car tuned after removing it?

noooo .
but i know alot of gt the removed it and nothing happened

i got the sct with the CAI
but it keep telling me wrong vhicle
im soooooooooo freaked out now
and no body know what is wrong

GT speeder13 · 12-02-2007

contact your tuner. ask for a new tune, or ask them to help you through it. I had to get MIL eliminators when I did my O/R pipe, but didnt do a tune. maybe your tuner was used previously or maybe there is just something missing in the tune...

BullMeister · 12-02-2007

Not knowing much about the electronics in these...but...could there have been an O2 sensor that was yanked and now the computer thinks it has clogged cats? I'm sure someone here knows just what's down there and how it affects the program.

lather · 01-01-2008

yea check ur wires i had a problem with another car where the air sensor appeared plugged in but was loose ..car would not start i messed with in for a wile and i seen that it was loose i fixed and never had a problem after

fishingjts · 01-01-2008

Quote:

Originally Posted by lather

yea check ur wires i had a problem with another car where the air sensor appeared plugged in but was loose ..car would not start i messed with in for a wile and i seen that it was loose i fixed and never had a problem after

he mentioned he couldn't get the tune to load... C&L requires a tune... if you try running a C&L without a tune your car is going to run like crap...

kmzeidler · 01-09-2008

Did you ever resolve your problem? If the rpm does not go past 2000rpm it sounds like you are in a fault mode. Which is most likely caused by them removing the cats and not doing anything about those rear O2 sensors reading retarded. Or, your tune did not load at all or your tune file was corrupt.

Please let me know what the problem was.

Hoodlum · 01-09-2008

Quote:

Originally Posted by kmzeidler

Did you ever resolve your problem? If the rpm does not go past 2000rpm it sounds like you are in a fault mode. Which is most likely caused by them removing the cats and not doing anything about those rear O2 sensors reading retarded. Or, your tune did not load at all or your tune file was corrupt.

Please let me know what the problem was.

Agreed. From what your post said it is mostlikely you have not turned off the rear O2 sensors. You need a tuner with a tune to fix this. Now you said you have a tuner but it wont read your vehicle. That is another problem.

**stlwagon** · 01-09-2008

Leaving the rear O2 sensors turned on with no cats has absolutely zero impact on performance. They measure cat efficiency and nothing more.