1991 Chevrolet C1500 "service engine soon" Questions

...service engine soon light keeps coming on I have a 1988 1500 Chevy pickup and the service engine soon light keeps coming on. If you stop and turn the engine off and restart it the light will go off. ...

...service engine soon'' light Hi, My truck just turned over 60k miles. When it hit 60,723 (quite a random number to be triggered by the odometer) the light came on. I did rinse the engine off with the ...

service engine soon light comes on..how do i get it to stay off...disconnected battery when it was replaced bnut light came back on after an hour. service engine light comes on even after the battery ...

...service engine soon light went to auto zone and got code p0420. what do i do What size engine does this have Rose? It's an 02 sensor/converter issue. When both 02 sensors read exactly the same ...

service engine soon light blinking fast engine light is blinking on and of real fast. it does'nt stop HI, this is signaling a serious issue concerning a vital sensor that is faulty or malfunctioning ...

...on my 98 chevy z71 and the service engine soon light stays on. How do i get the lihgt off? Take it to advanced auto they will hook up their obd2 reader print you outt the code and shut the light ...

...automatic trandmission. I want to know if the A5 pin, which send a signal to the Service Engine Soon light on the dash board, on the ecm is a 12V output. Go to TBICHIPS.com he will answer for ...

...service engine soon light was on. Upon investigation I found the Ignition Bi-pass Wire used for timing the engine was loose. I repared the connection and the idle improved and the light went off. ...

...service engine light Service engine soon light comes on while driving down the road When was the last time you replaced the O2 sensor. Most people negelect replacing it every 50K or sooner if it is ...

Service engine soon light stays on. Checked gas cap. It has code # PO140. Any help would be appreciated. p0140 is 02 sensor ckt no activity ( bank 1 sensor 2). bank 1 sensor 2 is in back of convertor,