Engine check light came on.

[bigralph 2]

Hi everyone.

My engine check light came on when I was driving in the high way. So stop by a local auto zone and rang a scan. They say that I have a P0108 and a P0137. I have no idea what this mean can some help me with this.

Thanks.

[marvelrunner]

Re: Engine check light came on.

This is what my Haynes repair manual says

P0108: manifold absolute pressure sensor circut, high input

P0137: oxygen sensor circut, low voltage (post-converter sensor, left bank)

Hope this helps. later

[bigralph 2]

Re: Engine check light came on.

Thank marvelrunner for look it up for me. Do you guys know were does manifold absolute pressure sensor circuit, high input located and why this happened? Also how could I fix oxygen sensor circuit, low voltage (post-converter sensor, left bank, and why this happened? Could I still drive my car this problem and how long. Sorry that I'm asking so much questions.

Thank.

[bigralph 2]

Re: Engine check light came on.

Do you guys think the cause of the manifold absolute pressure sensor circuit, high input to come on is do to a dirty air filter? Also you guys think the cause for oxygen sensor circut, low voltage (post-converter sensor, left bank) is do a 3" cat with an stock S-pipe on?

[marvelrunner]

Re: Engine check light came on.

Hey bigralph 2 I was reading in the Haynes manual to try and see if I could help but I need to know what year and engine type your car has. I will then either try to explain what the book says or scan the book and send you the images. I will try to do that later tonight when I get home from work. around 7:30 pm central time. Hope you can wait or that someone else can help. So just respond to this post. Later

[bigralph 2]

Re: Engine check light came on.

I also change my fuel filter like two weeks ago if that helps.

[BLLDOGG]

Re: Engine check light came on.

yes your aftermarket cat can/will throw a code.

[vanbibber]

Re: Engine check light came on.

change the MAP sensor and the 02 sensor.

[bigralph 2]

Re: Engine check light came on.

Thanks everyone for the help. I have a 2001 camaro auto if that helps.

[bigralph 2]

Re: Engine check light came on.

yes your aftermarket cat can/will throw a code.

I already have a o2 casper sims after the cat.

[marvelrunner]

Re: Engine check light came on.

Well I scaned and uploaded the pages from the Haynes manual and here are the links:

http://i16.photobucket.com/albums/b4.../MAPsensor.jpg

http://i16.photobucket.com/albums/b4...gensensor1.jpg

http://i16.photobucket.com/albums/b4...gensensor2.jpg

http://i16.photobucket.com/albums/b4...gensensor3.jpg

Hope this helps or gives you an idea of what to do. later

[loser]

Re: Engine check light came on.

I already have a o2 casper sims after the cat.

sadly o2 sims are hit and miss. some work, some dont, some work for a little, then go bad.

the post cat 02 doesnt have anything to do with how the car runs from my understanding, so its not a big deal.

[bigralph 2]

Re: Engine check light came on.

Thanks marvelrunner for scanning does pages for me. I going to replace air map sensor and the o2 sensor this weekend. Thanks everyone for the help.

[bigralph 2]

Re: Engine check light came on.

This sucks. I replace both the new map sensor and a new o2 sensor, and I still gave me the dam code of P0137. I know that isl the o2 sensor, but I think that I'm running rich. Maybe I'm wrong. Please help me with this.

[bigralph 2]

Re: Engine check light came on.

Any surjection. My car feel really slow. Help please!!!