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09-16-2003, 09:12 PM | #1 |
Registered Member
Join Date: Oct 2000
Location: Ontario canada
Posts: 446
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escort running rich
we have a 88 escort wagon that started running really rich.
Pulled the o2 sensor black replaced it all 4 plugs supper carboned. car still running rich after sensor plug change. I'm thinking return line plugged or pressure to high as gas is now smelled as soon as the car starts before it askes the 02 sensor for reading's so how do you test fuell pressure on a CFI unit ? should I be able to blow compressed air thru the return line ? there are two adjustments screws under the back of the throttle body for the fuel line and return line and I've been told you can remove the top of the cfi unit and turn the inside to adjust fuel pressure ?but the person didnt know which way was down ? someone else suggested a vacum leak but i couldnt find any. thanks the top end screams but how often do we drive there.
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89 with 331 t3'/t4 hybrids. upr Suspention worked out finnaly . 9.89 144 mph . |
09-17-2003, 03:23 PM | #2 |
Factoy Five Roadster
Join Date: May 2000
Location: Sevier Co,Tennessee
Posts: 1,681
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Had a map sensor go bad and do the same thing. I unplugged it and it smoothed out, replaced it and it fixed it.
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09-17-2003, 04:25 PM | #3 |
Registered Member
Join Date: Oct 2000
Location: Ontario canada
Posts: 446
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thanks pulled codes and got no crankshaft position sensor signal
and 02 sensor rich will check the map
__________________
89 with 331 t3'/t4 hybrids. upr Suspention worked out finnaly . 9.89 144 mph . |
09-17-2003, 05:50 PM | #4 |
Registered Member
Join Date: Oct 2000
Location: Ontario canada
Posts: 446
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found a leak in the vacum line going to the Map sensor. replaced the line car runs alot better but plugs are fould and so is the o2 sensor have to find a way to clean it.
the check engine light comes on but when i checked codes i got code 11 all ok ??? now to fix all the adjustments i made looking for the problem.
__________________
89 with 331 t3'/t4 hybrids. upr Suspention worked out finnaly . 9.89 144 mph . |
09-17-2003, 07:47 PM | #5 |
Factoy Five Roadster
Join Date: May 2000
Location: Sevier Co,Tennessee
Posts: 1,681
|
Never use anything on the 02 sensor to clean it. I have used a torch to heat it cherry red. Don't member what temp those things run at, maybe 500 degrees? Anyway, getting it red (But don't melt it) should work.
Not sure what any codes mean. Got too many numbers to remember as it is. |
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