D-Jet WAAAAY To Rich, or JOES 2012 HERSHEY EMERGENCY THREAD Options

[jsayre914]

My 2056 w/ D-jet has almost 200 miles on it, i have been tweaking little things here and there. Today I was trying to adjust the TPS. I turned the ignition on and slowly opened the throtle till i heard 20 clicks and then i tightened it down. Got on the freeway and seemed to run a bit better (less bucking) but then i drive 30 min and starts jerking like crazy

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I am loosing at least 1 cylinder under steady cruise and pick it back up on accleration. I get to the end of the freeway and i cant even idle, feels like running on 3 but still has full power. I also hear a knocking sound.

shut it down. put the tps back where it was, pulled the plugs. BLACKer than black. Wipe them off and start it back up. Engine is idling rough and i smell gasoline strong from the exhaust.

I pulled the wire off the head temp sensor and grounded the lead to the negative side of the battery, and I think it helped. I also adjusted the idle screw and the knob on the ecu till it seemed like it smelled less like gasoline.

Here I am, firing on all 3 with full power, engine pulls strong but a lot of misfiring due to rich fuel i believe


what the hell is going on here???




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[76-914]

The 9550 cam makes for a rich idle. I'm running basically the same set up as you. This is normal for the 9550 cam. Back to when it was running; was it tuned to the numbers or had you done some corrective tuning. In other words, tweeking the timing and air mixture to get it running right? Once it's tuned correctly the mixture control will effect your idle. This is reaching but have you checked your trigger points and tested your Pertronix. I don't know if one of the four pick up wires on the Pertronix rotor can fry or be defective with out effecting the other 3 but if that is possible it would show up in a test.