Distributors and Trigger Points (New Dizzy Installed), Troubleshooting Parts - CHT appears bad |
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Distributors and Trigger Points (New Dizzy Installed), Troubleshooting Parts - CHT appears bad |
tvdinnerbythepool |
Sep 9 2021, 08:43 AM
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#1
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Member Group: Members Posts: 310 Joined: 24-July 18 From: Olympia, WA Member No.: 22,336 Region Association: Pacific Northwest |
Hey all,
I am still chasing down an intermittent RICH condition when the car is fully warmed up. 1.7L D-Jet After fully warmed up with a tuned and rebuilt MPS I can come to a stop light and idle steady at 850rpms, next stop light it's bogging down to almost 200-300 and barely running. Then next light it's idling normally again. Some days I have no issues with idle at all, others I do. I've gone through all the components and troubleshot my way through everything on the PBANDERS list of "my car is running rich". I am as confident as I can be through extensive troubleshooting and testing that my ECU, AAR, MPS, CSV, Vacuum Leaks, CHT, Injectors, Fuel Pressure etc are all good. All new wiring harnesses, plugs, plug wires, cap, rotor, coil, etc. The ONLY thing I haven't worked on is the distributor. I am reading up on the possibility of the Trigger Sensor Contacts being warn and bouncing possibly shooting off extra injection pulses...could this be the cause of the intermittent problem? It doesn't have points anymore, but a petronix I believe. What do you guys think? Is there an easy test for this or do I replace the trigger contacts or the whole dizzy? Cheers! (IMG:style_emoticons/default/beerchug.gif) |
nordfisch |
Sep 26 2021, 02:34 AM
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#2
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Member Group: Members Posts: 86 Joined: 11-December 15 From: Germany Member No.: 19,451 Region Association: None |
Hi to all,
the 123 has a big disadvantage you should have to know, and some more issues: The injection timing of the original set is optimized - injection is done during the stroke the cylinder gets air. The 123 ignores this and injection is being synchronized with the ignition. This is suboptimal and takes the main advantage of the D-Jetronic over the L-Jetronic away. Users who report great benefits at the 123 won't have had a fully checked and correctly adjusted original distributor before. The original distributor's life will be another 50 years and it will still be repairable then - what about the electronic components of the 123? Regards Norbert |
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