87 944 Turbo only running on 3 Cylinders
11-05-2013, 09:09 AM
#17
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Yes, I agree with you Eric. It looks like cylinders #1 & 4 were much leaner than #2 & 3. I have an old Huntley mass air flow with a Split Sec controler. Yes I have a wide band O2 sensor hooked up and it was typically around 14.7 to 15 unless under wot and then would go to 11-12. Thats what it should have been reading wasn't it? Thanks, Doug
11-05-2013, 09:13 AM
#18
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Yes, I agree with you Eric. It looks like cylinders #1 & 4 were much leaner than #2 & 3. I have an old Huntley mass air flow with a Split Sec controler. Yes I have a wide band O2 sensor hooked up and it was typically around 14.7 to 15 unless under wot and then would go to 11-12. Thats what it should have been reading wasn't it? Thanks, Doug
With 1 or 2 abnormal cylinders, a physical fuel-flow issue becomes likely...
11-05-2013, 09:43 AM
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The wiring looked ok (no visible cracks), as well as the injectors I'm kinda thinking the wires were probabally the culprit and am inclined to replace them with new Lindsey ones and a clean set of injectors , swap on a spare head I have and see if the motor still has any life in it.
