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post #1 of 2 Old 25th May 2019, 04:08 PM Thread Starter
sundaycruzers
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Detonation blues.

So for months almost a year Iíve been trying to fix/find my detonation problem. It only occurs 3-4K not always under a load but typically up hill or full throttle. Iíve had 2 motorvac sessions to de carbon. Checked with borescope to see if carbon is the problem. I believe yesterday I might have found the culprit. So I decided I did want to wait for traffic, hit the m button and floored it. While look at the victims in the rear view mirror, I noticed the car was laying down a black smoke shield and immediately started to ping. I believe that would be a fuel injector problem. Any thoughts? Only hard codes I have are for alternator (Iím doing regulator today).
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post #2 of 2 Old 11th June 2019, 11:47 PM Thread Starter
sundaycruzers
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So changed my upstream O2 and definitely decreased my detonation problems. Going to change fuel injectors next.
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