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Ranger fixed


mike2357

Member
Joined
Aug 17, 2012
Messages
23
Vehicle Year
1989
Transmission
Manual
hi mike here

Thanks To all the guy for the info i found on this site my 87 STX high rider not only runs great yesterday it it pass the Colorado Air test with flying colors This site http://oldfuelinjection.com/ was the most help full site to learn the EFI system on my Truck it tells how every sensor works and how to test them and what the ECC dose with it Thanks to who ever posted it it will save u a lot of time and money
Air test before with a new O2 Sensor new plugs and wires air filter
After new MAP and Air Bypass valve Fuel pres Reg
HC GPM 12.8293 limit 3.5 After .9
CO GPM 24.2894 limit 30.0 After 16.2915
CO2 360.5097 After 401.0854
NOX GPM 2.78 limit 5.5 After 1.1838
 
Last edited:

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