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Specializing in the 3g CSM
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PostPosted: Sun Aug 30, 2020 7:05 pm 
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The Silent Administrator
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Joined: Wed Dec 24, 2003 3:32 pm
Posts: 9497
Location: Ottawa, ON, Canada
Had some issues a few months ago, that appeared exactly as a failing PTU, again. The OEM unit that was new from Japan, was removed and a newly acquired used unit (one spare lying in wait from the same Partout company) was installed with 4 new NGK BPR7ES spark plugs (gapped 0.028”). Logged the engine running out of the garage with the old stuff and logged the engine running with the replacements. Took the car for some more fuel, and approx 50 kms of low speed and high speed driving. No issues and the engine performed flawlessly. Stop, start, no issues.

I was testing a heat sink compound additive that I though would help the PTU to pass heat to the backing plate/intake manifold, but it was either that or a new part that simply failed. I can’t see anything else in the system that would cause this type of failure.

Car is back up and running the way it should.


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