code 34 + choppy idle + random multiple missfire

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TheRealNap0le0n
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Car: 1998 q45
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Are they all related to a bad knock sensor? Hit me outta no where. She used to breske up a lil on acceleration but now all the time. Clears up off load cruising though.


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TheRealNap0le0n
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well update: 1M ohm resistor, car runs less s*** but still breaks up under load a bit.... alott less than before. code 55 now so that issue is fixed.....

still tracing my gremlins down... :bs:

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xX RB Xx
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TPS. Check it. Mine was out of spec but didn't throw a check engine light.

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TheRealNap0le0n
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Yea I'm tinkering atm I wish I had a dvom

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Gabes13
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Car: rb20det s13
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Get one! trouble shooting electrical problems is so much easier

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TheRealNap0le0n
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I had one. I used to have an impressive tool collection but all my air tools and my dvom got stolen. And I'm kicking myself for selling my snap-on scan tool

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TheRealNap0le0n
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Ok so the knock sensor was bad, jumper a 1M ohm resistor and runs a bit better and no code 34. TPS is .50v at closed 4v open . CTS is 180 - 190ohms at operating temp which is out of spec according to the info I found so I jumped it with a 1M ohm resistor to simulate the engine running around 130 degrees... Also changed the fuel filter which when I turned it upside-down black stuff came out.

The car doesn't break up hardly at all any more but still does a lil on initial acceleration. I don't have a fp tester but I suspect the fuel pump getting when week.


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