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Old 01-30-2004, 08:02 AM
boschmann boschmann is offline
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Re: 85 golf fuel injection problems

Interesting, I haven't seen any CIS-E systems on non-GTI's. Since it seems to run for a few minutes then dies when it warms up, I'd start with the coolant temp sensor for the injection. It's located on the underside of the housing where the upper radiator hose goes into the cylinder head (blue connector). Resistance across the sensor pins should be about 2500 ohms @ 68 degrees F. Higher resistance at lower temps (e.g. around 4000 Ohms at 32 F) and lower resistance at higher temps (e.g. 200 Ohms when hot). They're not too expensive, so if you just decide to just replace it make sure you get the temp sensor for the injection, not for the temp guage in the dash. If the temp sensor seems okay, then you will probably need a special fuel guage set for testing CIS systems, and it gets complicated quick. Your fuel pumps can be running but not generating proper pressure, you will still get fuel at the distributor, just not the right pressure. Stalling out after the pump gets hot is not uncommon, does the pump noise sound different after it warms up?
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