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Member
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Join Date: May 2009
Location: bradford,ma
Age: 54
Posts: 811
Real Name: brian
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Member
Join Date: May 2009
Location: bradford,ma
Age: 54
Posts: 811
Real Name: brian
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First start with the basics. When was the last time it was tuned up, MAF been cleaned, TB cleaned, pull the plugs and check the condition on how they are firing, i've seen a few times that the 4.0 injectors can get stuck open and dump extra fuel into the cylinders., check for vacuum leaks.
If you have a good scanner check your fuel trims, check for misfires. Many times I've seen a dirty MAF cause a number of different things. If you have black sooty residue on the sensors, that's running rich. I had the exact same issue on my old '08 4.0 and it was a leaking injector.
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'08 4Runner Limited V8 Shadow Mica: Sport hood, bilstein 6112's, 5160's, b12 coils, Gibson cat back, 4runner XSP rims, Michelin X LT AS 275/55-20
'06 4Runner Limited V8 Salsa Red: bilstein 6112, 5160, Wheeler T12's, 4Runner XP wheels, Michelin AT2 275/55/20, Magnaflow Exhaust,, Powerstop brakes, sport hood
RIP.....'08 4Runner Limited V6: white, bilstein 6112s, 5160s, b12 , powerstop brakes, nav, TRD cat back, 4Runner XP rims, Michelin Defender LTX 275/55-20, sport hood
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