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General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

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Old 04-19-2010
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Bummed out

Hey all....I have ' 95 Ranger and the Ck engine light just came on. This is not my usual and customary ride. I ck'd all fluid levels,belts good, nothing unusual, any ideals to the affliction? Thanx in advance.
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Old 04-19-2010
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might want to take it to a parts store and see if they'll let you use their scanner.

truck running okay? might just be a sensor out.
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Old 04-19-2010
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^ what he said
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Old 04-23-2010
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Hey ...got it scanned....code P1131?? who has the book??....anyhow changed the air filter....am thinking I'll do the oxygen sensor next.....oh, I don't think its had a tune-up in a while(dad's truck).....
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Old 04-23-2010
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QUOTED FROM FORD FORUMS .COM

P1130 - Lack of HO2S-11 Switch, Fuel Trim at Limit The HEGO Sensor is monitored for switching. The test fails when the HO2S fails to switch due to circuit or fuel at or exceeding a calibrated limit. Electrical:
Short to VPWR in harness or HO2S
Water in harness connector
Open/Shorted HO2S circuit
Corrosion or poor mating terminals and wiring
Damaged HO2S
Damaged PCM
Fuel System:
Excessive fuel pressure
Leaking/contaminated fuel injectors
Leaking fuel pressure regulator
Low fuel pressure or running out of fuel
Vapor recovery system
Induction System:
Air leaks after the MAF
Vacuum Leaks
PCV system
Improperly seated engine oil dipstick
EGR System:
Leaking gasket
Stuck EGR valve
Leaking diaphragm or EVR
Base Engine:
Oil overfill
Cam timing
Cylinder compression
Exhaust leaks before or near the HO2S(s)
A fuel control HO2S PID switching across 0.45 volt from 0.2 to 0.9 volt indicates a normal switching HO2S.
P1131 - Lack of HO2S-11 Switch, Sensor Indicates Lean A HEGO sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time. See Possible Causes for DTC P1130
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Old 04-23-2010
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^^^ That narrows it down.
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Old 04-23-2010
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Originally Posted by RLong31 View Post
^^^ That narrows it down.
lol i was like holy crap. poor guy hope its something at the top of the list
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Old 04-24-2010
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Check the Gas Cap...
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