Puzzling question

TonkaTim · 01-12-2010, 02:05 AM

I can only feel & hear one click on the EFI relay.

I checked all 6 plugs by block grounding them & cranking over. All fired. That should mean I'm good on fire through the whole system. If it was a timing issue it would sputter spark the fuel.

It seems something is cutting the fuel circuit, only thing I can assume, especially when I pulled the plugs after several cranking attempts & the plugs were dry(no fuel in combustion chambers). If I can't find my meter I may have to buy another one = ( and start chasing circuits. I was reading over the schematics on the cygnusx1 site seems the fuel circuit runs through the AFM as well. May be just a bad ground somewhere. Unless the TPS with no IDL signal cuts fuel at the ECU.

Favor? - If either of you have a chance mind unplugging your TPS & see if it cranks?

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01-12-2010, 02:05 AM	#9
TonkaTim Stock Join Date: Jan 2010 Location: Kudzu Republic Posts: 11	I can only feel & hear one click on the EFI relay. I checked all 6 plugs by block grounding them & cranking over. All fired. That should mean I'm good on fire through the whole system. If it was a timing issue it would sputter spark the fuel. It seems something is cutting the fuel circuit, only thing I can assume, especially when I pulled the plugs after several cranking attempts & the plugs were dry(no fuel in combustion chambers). If I can't find my meter I may have to buy another one = ( and start chasing circuits. I was reading over the schematics on the cygnusx1 site seems the fuel circuit runs through the AFM as well. May be just a bad ground somewhere. Unless the TPS with no IDL signal cuts fuel at the ECU. Favor? - If either of you have a chance mind unplugging your TPS & see if it cranks?