multiple codes, hopefully related
10-15-2009, 01:13 PM
#1
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multiple codes, hopefully related ok i have an 01 ws6(originally posted in external performance under ls1 to ls1 pcv swap gone wrong) but i did the ls1 to ls6 pcv switch and now the car runs rough, in intervals the car will idle perfect and rev up to 3k rpms(a mcommand) perfect then all of a sudden it falls on its face and idles bad runs rich, then will quick rev it self to about 1500rpms then idle perfect again and back and fourth. the first set of codes i got was p0121,p0200, p0107, p1637, p0102 erased those then got p0101. p1637, p0101, p0107,p0102, p0121... hopefully ill get more help in this forum(ps before the swap i only had a rear o2 CEL)
10-16-2009, 03:54 AM
#2
One thing to check is the injector harness across the back of the motor on the driver side. The harness gets chaffed and will hold injectors open sometimes. Check for vacuum leaks as well. Make sure intake is properly torqued etc. Also try unplugging the MAF and see how it does. May be your MAF going bad.
10-17-2009, 11:50 AM
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thats what i was afraid of was i hit that wiring harness and broke a wire that somehow connects the map, maf, and tps like a ground wire or something cause they all read low in the CEL and i unplugged all of them and no change but i am getting accurate readings from the sensor itself(correct values, checked with diagnostic reader, not tech2 but older style).. and i completely pulled the intake back off and reinstalled it and same problem. so i took it to the stealership(dont want to see the bill but i need my car)
