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

(IMG:style_emoticons/default/WTF.gif) (IMG:style_emoticons/default/WTF.gif)

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???




(IMG:style_emoticons/default/blink.gif)

[Cap'n Krusty]

Not a possibility. Really.

No vacuum line at the TPS.

Have you checked the MPS?

The Cap'n

[jsayre914]

Not a possibility. Really.

No vacuum line at the TPS.

Have you checked the MPS?

The Cap'n

oh tps (IMG:style_emoticons/default/chair.gif) i was thinking mps.

The mps holds vacume no problem for 5 min

[brenz]

Adjust the TPS using the procedure on Pelican with an ohm meter. I'll assume you weren't adjusting the mps.

ECU knob only affects the idle circuit, so set it half way to start with.

If you smell raw gas at the exhaust pipe then one of your injectors may be leaking or spraying too much. After having my old set cleaned I had one that didn't spray, it streamed. That cylinder didn't fire since the plug was too wet with fuel.

Of course vac leaks cause rich running. Disconnect everything but the mps and plug the hoses. Start it up and connect the hoses one by one to see what changes. A vac gauge between the mps and the intake plenum is also helpful. Should have at least 15"hg at idle (900 rpm). Maybe a little different for a 2056.

Lots of topics on rich running here. Use this search:
http://www.google.com/cse/home?cx=00240834...2%3Aajvfxschcgc