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Halfnelson |
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#1
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Newbie ![]() Group: Members Posts: 46 Joined: 31-July 17 From: Cornwall Member No.: 21,303 Region Association: England ![]() |
Help - my new to me 1973 1.7 Djet came running really sweet, but almost immediately developed the 'hunting tick-over' of lean running / air leak. We replaced all the vacuum pipes, found one of the inlet gaskets had a very slight leak. Seems somewhere along the line things have been tweaked to compensate for the leaks so that now they're cured, the car is running super rich. Having had a L-jet for years the Djet is new to me so any advice on where to start first would be much appreciated. Thanks Chris
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rjames |
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#2
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I'm made of metal ![]() ![]() ![]() ![]() Group: Members Posts: 3,956 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest ![]() ![]() |
I spent well over a year troubleshooting a similar issue. The car would run fine for a while, and then out of nowhere, go rich and then stall. Right before I figured out what it was, the amount of time it would run well before stalling decreased.
It turned out to be a bad ECU- the things that rarely fail supposedly. I think it was a heat issue. As the engine bay warmed up something in the ECU would fail and cause an overly rich condition. Figuring it out wasn't easy. I had two other ECUs that I used for testing and both caused the car to flood- including a NOS unit that had never been installed. A 3rd ECU I tried out of desperation fixed the issue, and have had no issues since installing it 2 years ago. It's an easy thing to rule out if you have another known good ECU you can swap in for testing. |
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