Thread: CIS fuel head
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Alan L Alan L is offline
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Join Date: Apr 2006
Location: New Zealand
Posts: 2,874
Checked the WUR, and nothing wrong inside. Checked some fuel pressures - I did'nt leave the injectors screaming for 20 mins. I bypassed that system and hooked 12 V directly onto the WUR connections (from a battery). After 20 mins I turned the key on to see what the pumps could register. The pressures seem unusually high according to my info. Hopefully someone can confirm I have this right. But my cold pressure is 50 psi. I believe it should be 20-30. My warm pressure is 70 psi (should be 50). My system pressure is over 100 (my gauge only goes to 100). Should be 100 max. I have cut the warm press back to 60, but will have to take all the shims out to get to 50. Does this sound right - my injector opening pressures were around 50.
Alan
Old 11-30-2007, 08:40 PM
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