At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
Thanks , I thought about the injectors but would all injectors just quit . The car ran great then out of the blue the engine dies .The car started back up I drove it for about a week then every time I start it it dies. I have put in a new ECM. I have had the computer prom read and had the VATS removed.Thanks , I thought about the injectors but would all injectors just quit . The car ran great then out of the blue the engine dies .The car started back up I drove it for about a week then every time I start it it dies. I have put in a new ECM. I have had the computer prom read and had the VATS removed.
You can't post conmments that contain an email address.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Find someone that knows a little about engines, Tammy. It's a 91. First is to check the engine. Compression. After that , check timing, oil pressure. Then go to tune up. Sorry to say, but you probably wasted money on a bad engine.
Never take a battery cable off with engine running or with key in the on position-voltage spikes can kill the computer that way.
Check fuel pressure with key on. If not as specified for your car, the pump or the fuel filter may be the problem. Correct fuel pressure is critical on fuel injected engines.
If you feel like the engine is still ok, I would look at the oil pressure and check engine light issues. On engines with fuel injection, the fuel pump is powered by the pump relay until the engine starts. Then the engine has to have oil pressure to keep the fuel pump powered. Its a safety feature so if you are in a wreck the fuel pump does not keep running if the engine is off. I would want to know why the oil pressure light is staying on and what the trouble codes are in the computer.
The fuel pressure need to be 48psi to 55 psi. The fuel pressure has to be correct inorder for it to start you said you have fule pressure then we need to assume the pressure is good first check for power at the injector with key on engine off If you dont have power check the engine fuse box for a open fuel injector fuse replace if there is a open fuse , then check the ground signal that comes from the ECM this should be a on off ground signal Now you check this on left and right bank since your vehicle injector is bank fired . You will also need to check the injector relays there should be 2 one for left and one for right more than likely you have the ijector harness disconnected so follow the wire to its junction and make sure its realy connected not just looks connected
Check your fuel pressure it should be 40-47 with the key and engine off and 30-44 with engine running.If its not within these specs then replace the fuel pump and filter.
Check for fuel pressure and check for spark during the no start condition. Also check the crank sensor, it is located behind the crank pulley mounted in the engine block on the 4.3 L engine I hope this helps.
Thanks , I thought about the injectors but would all injectors just quit . The car ran great then out of the blue the engine dies .The car started back up I drove it for about a week then every time I start it it dies. I have put in a new ECM. I have had the computer prom read and had the VATS removed.
×