Chevy cavaliar starts but after warm up it stalls or trys too
Hi i i just moved to Tx and had problems all the way here from Pa and my check light went on. i fixed the O2 sensor and cleaned thrott body . now we got a new CAT put in it before we left and notice something was wrong the check light never went out . now my problem is that the car will start with no check light on but for some reason after a while it wants to stall when left in park when u drive it its fine for like 10 to 15 mins then stalls and is a pain to start over without the use of starter fluid in thott body can u help with this problem
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1. Is the Check Engine Light (CEL) on?
2. if it is, get an ODB II code reader and read the codes from the engine. There might be more than one code. (most auto parts store will do this for free if live close to an auto parts store)
With that code reader you can almost get the car to point you to the problem. Pull the codes from your car and post them and then someone can give you a more exact answer to your question.
Well, code 336 is for a problem with the crank sensor, and code 171 is for fuel system too lean bank one which is the side with cylinder one. Since you have checked fuel pressure and I will assume fuel volume is good, the crank sensor or circuit could be at fault.
I had the exact problem with my 1993 chevy c1500. I found that the IAC was sticking so the engine would die at idle after warming up and the ignition module was pulsing the ECM intermittently after the engine warmed up so the fuel pump wasn't being turned on after the engine died....I replaced the ignition module and the IAC valve and all is good. I don't know if testing the ignition module reveals that it isn't sending pulses to the ECM.
hi there are many things that will cause this to happen, i will give you some things to start looking into for this..first on list, air intake or vacuum system, listen for air leaks, you might have a fault on the ignition system, check plugs and leads, you IAC or idle control valve might be faulty..any codes?, fuel pressure / fuel pressure regulator and fuel filter, TP sensor throttle position sensor is this working correctly, check ECM for codes engine control module hope this helps