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Registered
Join Date: Jun 2012
Location: Moses Lake, WA
Posts: 1,352
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D-Jet warm idle issue
73 2.0 motor with original D-Jet. Idle behaves normally during warm up. Usually would stay a little high around 1100 rpm. Today, temps in the 80s, after a half hour of driving the idle would now drop below 1000 rpm, get rough and then die. Got to the point I had to apply throttle coming to any stop sign to keep from dying. No current experience with D-Jet, thoughts?
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73 914-6 GT tribute, 2.7L twin plug 23 911 w/aero kit 07 GT3 RS Pumpkin |
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04-25-2018, 05:35 PM
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Administrator
Join Date: Aug 2016
Location: Los Angeles, CA
Posts: 6,087
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Take a look at the link below to an earlier thread where the D-jet is discussed. There are also some helpful links within the thread. Hope you find this useful.
D-Jet diagram? Help... |
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04-26-2018, 10:17 AM
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Registered
Join Date: Jun 2012
Location: Moses Lake, WA
Posts: 1,352
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Quote:
The longer I drive, and the hotter the engine gets, the more the idle drops until it wants to stall (fully warmed-up) Rich idle mixture: This seems to be fairly common on 914's where the idle mixture is set "by ear". When you have carburetors, you learn to set idle mixture by looking for the setting where you get the highest engine speed with closed throttle. This doesn't work for D-Jetronic cars! Set your idle CO to spec by having a shop use a quality CO meter. Trust me on this one, I chased this condition for at least 5+ years!! Note that when I say "rich", I'm talking about idle mixtures of 5% CO or greater. I've seen as much as 8%! The above came from this document: https://members.rennlist.com/pbanders/idle.htm
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73 914-6 GT tribute, 2.7L twin plug 23 911 w/aero kit 07 GT3 RS Pumpkin |
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04-26-2018, 01:48 PM
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