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Junior Member
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Join Date: Nov 2016
Location: Minneapolis
Posts: 22
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Junior Member
Join Date: Nov 2016
Location: Minneapolis
Posts: 22
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Old mixed gas cause check engine light?
2000 SR5 3.4 check engine light came on the other day.
I suspect it may be from dumping about 2 gallons of mixed gas from the outboard boat motor fuel tank into the Toyota tank last weekend. I've done it before with my old Dodge pickup without any negative results, but that had a 33 gallon tank. 2 gallons of mixed gas in a 18 gallon tank might not be enough to dilute it without problems?
It's throwing codes; P0171: System too lean bank 1, P1133: and P1130 both indicate an issue with the Oxygen sensor and P0125: Insufficient coolant temp for closed loop fuel control.
I'm going to clean the MAF sensor first to see if that clears things up. Just curious what others think about this issue.
Thanks,
Pilgrimtrucker
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