Question about 1991 GMC Sonoma
Code of 24
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Posted on Jan 02, 2017
P1133 - Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1
I would have the repair shop see if they either damaged or left disconnected the oxygen sensor for engine cylinder bank one upstream sensor, this sensor would have been disconnected if the oil pan was removed.
Posted on Apr 20, 2009
SOURCE: i have a p0442 engine
P0442 - Evaporative Emission (EVAP) System Small Leak Detected.In this instance first thing I would check is the gas cap to make sure its tight and the seal that meets up with the filler neck is not cracked.Rust built up on the filler neck can sometimes cause a poor seal.
Posted on Sep 03, 2010
SOURCE: I have engine code P0410
Hello, the air pump is located under the rad. on the lower core support towards the right. and yes you will need to replace the air pump, you will also need to install a updated hose assembly with a new filter. also in allot of cases the air pump fuse will blow when the air pump goes bad. the fuse is located by the battery in the right fender.
Pump Kit, Secondary Air Injection
Posted on Nov 07, 2010
Hi, I'm not sure what those codes stand for or what part(s) the codes are referring to but a local parts store in your area should be able to look it up and tell you. My experience with checks engine lights coming on have always been because of the oxygen sensor. Good luck if you haven't found your problem already.
Posted on Jan 02, 2011
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