- Jun 17, 2009
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do i need my O2 sensors? i just recently traded for a 91 gt aod car i put an h-pipe on it,but it has no O2 bungs, secondly the car runs rough,not quite in time i think,,should i sp the FI for a carbO2 sensors? do i need them?
- Thread starter 91Grn/SlvrGT
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do i need my O2 sensors? i just recently traded for a 91 gt aod car i put an h-pipe on it,but it has no O2 bungs, secondly the car runs rough,not quite in time i think,,should i sp the FI for a carb
Yes, you need them with Fuel Injection.
Instead of swapping to carb because the car is running rough, why not troubleshoot it??
If you ask me, EFI > Carb
Instead of swapping to carb because the car is running rough, why not troubleshoot it??
If you ask me, EFI > Carb
- Jun 17, 2009
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ok i try troubleshooting it first ,but i thnk it has burnt rings also , smokes when you get on it,i aso hav an 78 351w with a c4 trans i could swap,but im not sure what would be the best route
ok i try troubleshooting it first ,but i thnk it has burnt rings also , smokes when you get on it,i aso hav an 78 351w with a c4 trans i could swap,but im not sure what would be the best route
Without the O2 sensors, the computer runs in limp mode with reduced power and economy.
I usually have a lot of unkind things about people who convert EFI street cars to carb, but since it is late, I will spare you the roasting.
Here's a book that will get you started with how the Ford electronic engine control or "computer" works.
Ford Fuel Injection & Electronic Engine Control 1988-1993 by Charles Probst :ISBN 0-8376-0301-3.
It's about $25-$35 from Borders.com see Amazon.com: Online Shopping for Electronics, Apparel, Computers, Books, DVDs & more . Select books and then select search. Use the ISBN number (without dashes or spaces) to do a search
Use the ISBN number and your local library can get you a loaner copy for free. Only thing is you are limited to keeping the book for two weeks. It is very good, and I found it to be very helpful.
Since a lack of understanding of electrical systems is often a part of the phobia associated with fear of EFI, here's some help with that area:
Try Automotive Online Instruction for a beginning course in automotive electrical systems. The course is very good and best of all, it is FREE!!!
I usually have a lot of unkind things about people who convert EFI street cars to carb, but since it is late, I will spare you the roasting.
Here's a book that will get you started with how the Ford electronic engine control or "computer" works.
Ford Fuel Injection & Electronic Engine Control 1988-1993 by Charles Probst :ISBN 0-8376-0301-3.
It's about $25-$35 from Borders.com see Amazon.com: Online Shopping for Electronics, Apparel, Computers, Books, DVDs & more . Select books and then select search. Use the ISBN number (without dashes or spaces) to do a search
Use the ISBN number and your local library can get you a loaner copy for free. Only thing is you are limited to keeping the book for two weeks. It is very good, and I found it to be very helpful.
Since a lack of understanding of electrical systems is often a part of the phobia associated with fear of EFI, here's some help with that area:
Try Automotive Online Instruction for a beginning course in automotive electrical systems. The course is very good and best of all, it is FREE!!!
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