reseting the engine check light

[Where's my car?]

The code readout for my car was P1128 and p1130

Anyone can help me, and tell me whats wrong? Thanks a Whole Lot

[RandallNeighbour]

Those codes are for your oxygen sensors. They're about $113 each from www.oxygensensors.com and you can change them yourself in 45 minutes. It's real easy. However, you must do all four at once as they don't play nicely when some are old and one or two are new.

For more information on CE light codes, check the page on my web site. I have them all listed.

[ChrisZang]

True,

but when you get readouts on both cylinder banks at the same time I usually first suspect a problem which affects both cylinder banks. It's less likely that Oxygen sensors on both sides die at the same time and more likely that one COMMON component bit the dust. The MAF might be the culprit here...

There are many threads about diagnosing an fixing MAF related problems, simply search the forum for MAF

Originally Posted by RandallNeighbour

Those codes are for your oxygen sensors. They're about $113 each from www.oxygensensors.com and you can change them yourself in 45 minutes. It's real easy. However, you must do all four at once as they don't play nicely when some are old and one or two are new.

For more information on CE light codes, check the page on my web site. I have them all listed.

[FrayAdjacent]

Ok, you know what the codes are.

I had a P1129 back in January or February... cleared it and it never came back.

I would clear it and drive the car. If the codes return, you would probably then do well to look into the O2 sensors.

[Where's my car?]

YEa i thought it was the Mass Airflow Sensor too!! but my mechanic insisted on the fact that i was o2 sensors. I ended up spending 600 fixing the first two o2 sensors, and the light is still on!!! do u think i should be the MAss Airflow Sensor??

[JAAY]

The whole job cost me 600 to do all 4 sensors and the mass air. I got the mass air from departstop.com and the sensor (buildable ones) from NAPA.

[steve00s]

I had codes P1128 and P1130. Replaced the mass air flow sensor and no more CEL. That was about a year ago.