2000 xj8 engine codes
#1
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I just got a 2000 xj8. It had a miss and check engine light on with power reduce comes on at times. Guy I got it from replaced the plugs but the 2 cylinder back on drivers side do to striped bolt. I got bolt out and changed that plug. I got codes pulled some I have no info on. Any help is appreciated
P0171 bank 1 lean
P0174 bank 2 lean
P0300 random misfire
P0303 cylinder 3 misfire
P0307 cy 7 misfire
P0308 cy 8 misfire
P1316
P1642
P1111
P1000
P0171 bank 1 lean
P0174 bank 2 lean
P0300 random misfire
P0303 cylinder 3 misfire
P0307 cy 7 misfire
P0308 cy 8 misfire
P1316
P1642
P1111
P1000
#2
#3
#4
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I had the lean codes with a vacuum leak due to the part load breather hose being broken. But, I have seen a few posts where the harmonics tube, or whatever it's called, was cracked and leaking. The little nub of plastic that is sticking out of the intake pipe between the throttle body and the MAF. Just a thought.
#7
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I had similar codes. I removed the MAS and cleaned it with Berrymans carb cleaner. I installed a new air filter. I also verified that the brake assist vacuum line was tightly sealed to the throttle body. I cleaned all electrical sensor connections on the engine that I could get to. This included the cam position connections on the top front of the heads. I now have no lean conditions and no other codes. I do still ahave a cylindar 8 misfire condition that is only present when the engine is cold. This condition clears completely at normal operating temperature.
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