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1998 Cadillac Seville ENGINE TROUBLE

Tiny
PROUDDAD86
  • MEMBER
  • 1998 CADILLAC SEVILLE
  • V8
  • 2WD
  • AUTOMATIC
  • 82,000 MILES
98 seville sts. Well I bought the car about a month ago and its been nothing but trouble. It normally takes two or three times to start but would run fairly and it idles ruff it goes up and down. I took it to advanced to get the codes and it lead me to replace the o2 and crankshaft sensors, and the ignition moduel with new coil packs. It still has four codes 2 of each P1350(ignition controll system) and P1375(IC 24x reference circut high voltage). Im really tired of buying parts that it dont need to anyone with and wisdom for me would be greatly appreciated!
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Monday, April 14th, 2008 AT 7:09 PM

1 Reply

Tiny
BUZZSAW
  • MECHANIC
  • 1,198 POSTS
Well the other things to replace is the pcm or engine harness I have a 97 book that tell how to diag these codes but the wiring may be different. Do you have a multimeter and jumperwires and know how to use them? And use wiring scematics, if not take it to the dealer sorry, its long and tedious work. I have about 6 pages of testing for both codes
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Tuesday, April 15th, 2008 AT 1:38 PM

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