Crank no start, with a twist?
#1
Crank no start, with a twist?
And yes I have searched:
I have a 90 with a 1.6 that will crank, but will not fire. My initial thought was CAS. Tried 3, no change, next on to coil packs, tried 2, no change, AFM, have 3, tried them all no change. Also have a few 1.6 ECU's laying around and tried them also. So at the suggestion of a friend I sprayed brake cleaner in the intake manifold. Engine pops off and idles, as long as I keep spraying brake clean. Ok so on to the fuel system.
Started with a new fuel pump and also tried an older one that I know worked on another car. Crank and no fire. Checked voltage at the pump plug with the fuel pump/GRND in the diagnostic box jumpered. Good voltage there. When the car is cranked, voltage drops to 9.8 or so. I checked for fuel pressure and the gauge I used didn't move the needle. I blew out the fuel lines, back to front and then front to back. Ran a short fuel line to a bottle and cranked the engine, getting very obvious low pressure there. Removed the fuel filter from the fuel line, replaced with a union for free flow, still no change in pressure. Checked for pressure at the fuel pump and I get the same trickle of fuel straight off of the sending unit. I swapped out the circuit opening relay and nothing has changed.
So my question for you all, what the bloody hell am I missing here? Any insight would be helpful, and I am not opposed to throwing a match in the fuel tank.
I will be posting this on other forums as well.
I have a 90 with a 1.6 that will crank, but will not fire. My initial thought was CAS. Tried 3, no change, next on to coil packs, tried 2, no change, AFM, have 3, tried them all no change. Also have a few 1.6 ECU's laying around and tried them also. So at the suggestion of a friend I sprayed brake cleaner in the intake manifold. Engine pops off and idles, as long as I keep spraying brake clean. Ok so on to the fuel system.
Started with a new fuel pump and also tried an older one that I know worked on another car. Crank and no fire. Checked voltage at the pump plug with the fuel pump/GRND in the diagnostic box jumpered. Good voltage there. When the car is cranked, voltage drops to 9.8 or so. I checked for fuel pressure and the gauge I used didn't move the needle. I blew out the fuel lines, back to front and then front to back. Ran a short fuel line to a bottle and cranked the engine, getting very obvious low pressure there. Removed the fuel filter from the fuel line, replaced with a union for free flow, still no change in pressure. Checked for pressure at the fuel pump and I get the same trickle of fuel straight off of the sending unit. I swapped out the circuit opening relay and nothing has changed.
So my question for you all, what the bloody hell am I missing here? Any insight would be helpful, and I am not opposed to throwing a match in the fuel tank.
I will be posting this on other forums as well.
#5
Boost Czar
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Join Date: May 2005
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do you buy this thing not running or something, or did this just happen?
is your fuel filter clogged?
did you check fuel pressure on the return hose and not the inlet?
I checked for fuel pressure and the gauge I used didn't move the needle. I blew out the fuel lines, back to front and then front to back.
did you check fuel pressure on the return hose and not the inlet?