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cold start problems 200

Two possibilities I can think of:
The fuel pressure regulator is stuck and making way too high fuel pressure. IF no fuel comes from the return line (the hose on the front end of fuel rail) then I'd guess this is defective. Not too expensive to replace. No smoking while working on it!
The second thing is a possible defective fuel computer (ECU). The 89 is notorious for this. One fix I've seen several times is to jumper the fuel pump wiring to force the pumps to run all the time with the key on. If your pumps come on immediately, without turning the engine over, then someone has messed with it. COuld be a bad original engine computer- the fix will likely include a new -951 ECU to replace the bad -561, and removing whatever hack job was done to the wiring. I'm not saying this is definitely it, but quite a few cars had "repairs" like this done at various times.
--
Rob Bareiss, New London CT ::: '87 244DL/M47- 234K, '82 245T/M46-182K, '84 242DL/AW70-100K, '89 244DL/AW70- 212K and I miss my: 86 244DL 215K, 87 244DL 239K, 88 744GLE 233K, 88 244GL 147K, 91 244 183K






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New cold start problems [200]
posted by  philski3  on Sat Dec 25 13:53 CST 2004 >


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