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Top 2GNT Technical Turbo/Nitrous Tech topic #36587
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Subject: "Starting prob, turns over" Previous topic | Next topic
Super20GDec-29-02 04:49 AM
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#36587, "Starting prob, turns over"


          

the engine turns over, fuel pressure gauge reads 40-45psi, switched power wire on the dfi reads 12v, nothing has changed or been touched since last time it was driven i dont think... but it wont catch or try to catch. Turns over fine though. I havent started it for a few months really, cause i have been busy, but i did get it running last week. It was loading up on fuel and not starting... so i cut the cranking fuel for the temperature range down from like 9 to 4, cleaned the plugs, blew out the cylinders, and it fired right up, drove for 1/2 hr, parked it, and now this week it wont start,...should i check the coil pack and plug wire resistance values? any ideas?

edit: hmmm, the msd box isnt lighting up when cranking... the plugs wires arent throwing sparks.... the wiring for the MSD hasnt changed, what should i check? It is grounded good, and the 12v wire that goes directly to the battery gets 12.02v...

  

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JustOneDec-29-02 05:19 AM
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#36588, "RE: Starting prob, turns over"
In response to Reply # 0


          

I would say check the spark, make sure your good there. Check engine coolant sensor for the DFI make sure it is reading right. Fuel pressure is good but your flooding. So I would think it's a spark problem or the dfi isn’t seeing a temp change and dumping too much fuel.

You can't get it to start by leaning it all the way out w/ the power controller?


If I ever flood the engine I will have to turn the idle setting all the way lean and crank it a few times then slowly richen it up and keep turning it until it catches.

  

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Super20GDec-29-02 05:26 AM
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#36589, "RE: Starting prob, turns over"
In response to Reply # 1


          

well, it seems not to be getting spark. the msd powerwire has power, and its grounded good, and the signal wire is plugged in like normal, i think its the white from the DFI if i remember correctly... but the plug wires arent sparking, and the red light on the msd isnt flashing when cranking...

edit:
maby i wasnt waiting long enough, or i wiggled something just right, hehe, but now after a second or so, the msd flashes like its firing... i pulled the plugs and they are dry, not wet like i expected.... wtf..


  

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Super20GDec-29-02 07:35 AM
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#36590, "RE: Starting prob, turns over"
In response to Reply # 2


          

Coil Pack Values

Primary Coil Resistance

Standard Values(via shop manual): .51§Ù - .61§Ù
My Coil Pack : .6§Ù cause I cant get this damn fluke to read .01 resolution

Secondary Coil Resistance

Standard Values(via shop manual): 11.5k§Ù - 13.5k§Ù
My Coil Pack(#'s 1 & 4): 11.93 (after soaked inside for 2 hrs)
My Coil Pack(#'s 2 & 3): 11.53 (after soaked inside for 2 hrs)

Outside values(approx 35 deg temp drop)
My Coil Pack(#'s 1 & 4): 11.73 Mean from 30 readings
My Coil Pack(#'s 2 & 3): 11.32 Mean from 30 readings



  

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