bcplace1
12/5/2007 3:00:45 PM
I bought a 87 Iroc No motor Put in a 5.7 and I cant get the fuel pump to come on without wiring it direct ive swapped relay still no worky
is ecm my next thing to try or does anyone have asomething else I can try
Thanks
350rs
12/5/2007 4:55:51 PM
could be an open link somewhere.
bcplace1
12/5/2007 5:17:04 PM
How would i find that?
Could it be the e i c?
BW
350rs
12/5/2007 5:22:16 PM
i believe there is another fuse for the fuel pump in the engine bay. did you check that one too?
bcplace1
12/5/2007 5:42:36 PM
I checked that one to its good everything keeps leading me back to eic but Im not sure how to check it other than buying a new one
350rs
12/5/2007 7:00:45 PM
got me beat, have to ask somebody who knows a bit more man, sorry
86Z350
12/25/2007 9:57:42 PM
There is the possibility the Oil Pressure switch either is bad or disconected.
Real PITA. Its back by the distributor towards the drivers side. Its there to stop the motor in the event of an oil pressure problem.
The pump works when you jumper it right?
There is also a quick disconect near the underhood fuse for the ECM/Fuel pump.
You can unplug that and plug it back in and it should reprime the fuel system.
Good luck
Jr. Mechanic
12/26/2007 12:04:01 PM
Just slap a mechanical pump on there...
Gorn
12/26/2007 1:37:40 PM
That brings up a question. This was a TPI car? And you replaced it with TPI? If memory serves they are at different pressures with the TBI. +1 on what 86Z350 Most likly its the sending switch/connection. Have you started the car? Pump should run for about 10 seconds when the key is turned on then shut off if there is no oil pressure.
Dougs1990rs
1/10/2008 8:46:12 PM
wire the green wire (i think) [it's the one that goes to the oil pressure sending unit to key power] trust me it work's
Arizona Camaro
1/11/2008 9:41:08 PM
What does "wire the wire" mean?
