TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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Old 10-02-2010, 06:50 PM
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Car: 1990 FORMULA WS6 T-TOPS
Engine: 305 TPI
Transmission: BORG-WARNER T5
Axle/Gears: BORG-WARNER 3.42
Please Help!!!!

I fixed my oxygen sensor, drive belt, idler pulley, spark plugs and new wires, new cat. convert. Oil change. I also adjusted the timing and still have the same problem. When i turn the ac or when my car gets hot its start to knock . Can it be a vacuum line? I have checked everything and still no luck. Im going to replace the other cat. converter next week. Hope that helps. If it had a vacuum leak does the check engine light turn on? Please Help... Thanks
Old 10-02-2010, 09:14 PM
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Car: 92 T/A 'vert
Engine: Mild .040 over L98 4 bolt mains
Transmission: Mostly stock 700R4, 2600 Vigilante
Axle/Gears: LS1 3.42
Re: Please Help!!!!

Knock sensor. SES light? Codes?
Old 10-02-2010, 10:25 PM
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Car: 1990 FORMULA WS6 T-TOPS
Engine: 305 TPI
Transmission: BORG-WARNER T5
Axle/Gears: BORG-WARNER 3.42
Re: Please Help!!!!

Originally Posted by watajob
Knock sensor. SES light? Codes?
no ses light since i replace the oxygen sensor. where is the knock sensor located? does it even have one?




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