Error codes on 1996 Discovery
#14
I get the P1178 every couple of months or so. The truck runs fine and passes inspections as long as it has run long enough after I reset the code. I believe it means that the ECU is saying that it is adding fuel to the mixture at the max amount compared to it's base fueling map. Which means I probably have a vacuum leak somewhere. I can't find a vacuum leak to save my life, and the code only pops up every couple of months, so I've just put up with it. I have cleaned the MAF and throttle body to no avail. If you guys do find a cause, I would be very interested. Cheers.
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Thomas Lane
Discovery I
14
03-13-2015 04:10 PM