Question about Jaguar XJ8
P1642 is a possible PCM failure
Oil on top of the plugs may of stressed the computer.
All the other codes point to a misfire issue.
The valve covers gaskets should be replaced to stop this condition and the plugs and the boots should be replaced. .
Then clear all codes and try to restart. If the P1642 is still there then your going to have to use a shop repair this since your going to need the new computer programmed.
Posted on Feb 02, 2010
P0174 system too lean bank 2, p0300 random misfire, p0301 cylinder 1 misfire, p1313 misfire rate catalyst damage fault bank 1, p1642 fuel pump monitor circuit high input, p1111 intake air temp sensor circuit intermittent high voltage. thats alot of codes all at once. did this vehicle have any codes prior to this? the answer is quite important. if all was good.....replace the ecu. these things just dont throw that many codes, so erratic, all at once.
Posted on Feb 01, 2010
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Posted on Jan 02, 2017
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