Quote:
Originally Posted by Trunkmonkey4
I really need to get the 911 running, I am moving out of my current rental house and it would be a heck of alot easier if I would drive it away... and more fun.
So it could potentialy be one or more of these things:
-Fuel Accumulator
-Cold start injector
-Fuel pump check valve (internal?)
Could a bad battery really be the cause of it not starting at all? I am still thinking fuel pressure, but I guess now I have a major failure some where in the system and not just something that affects hot starts. I have a CIS pressure test kit in the mail now, that should clear some things up.
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Trunk,
I've been following this post for a while and tried to stay away until today. I know how much you wanted this car to run and drive it but it won't happen until you do a systematic investigation and tests to determine the culprit/s. By tinkering the fuel mixture setting (which you did already) without confirming the absence of any significant source in the system, you had created a bad situation worst.
Stop the quess work and start doing something sensible to get to the bottom of your problem/s. Test and confirm!!!!!!! All the CIS componnts you mentioned about could be tested and verified by DIY'ers like you or me. Don't replace parts if they are not defective unless you don't care about spending your hard earned money.
Now, let's start doing some work:
1. Check your fuel pressures (system, control, and residual).
2. Have your battery analyzed by a competent battery technician/shop.
3. Check for air/vacuum leak in the system.
4. Confirm the presence of ignition sparks during cranking.
5. The WUR, FP, FA, fuel filter, etc. could be checked without running the engine.
Why did you tweak the mixture setting in the first place? You don't need to change the mixture setting for starting an engine if the engine was running before!!!!!! The change in the mixture setting was caused by something else. You could drop your engine from a tall building and your mixture screw setting would be unchanged!!!!!
Go ahead and share with us your test results. It is very easy to make a CIS engine to run if you stop quessing. Keep us posted.
Tony