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View Full Version : Car won't start...Fuel filter and/or pump?


DrtyRat
12-19-2006, 07:35 AM
Alright,
Been having some prob lately starting my car when the engine is cold. I would have to give it gas to start and it would bog for a second and then run fine. I went to start the car the other day, and the car turns over fine but won't start. I give it gas, the car turns over and over but won't start. I had this same prob one time, and it turned out my fuel pump had a bad ground. I have yet to check it out b/c it has been raining the past few days, but I was wondering if this sounds like a prob w/the fuel pump, or could a clogged filter cause this as well? I hope its not my fuel pump b/c I bought it brand new from the dealership(Twin turbo supra pump) and it wasn't cheap. I hope this wasn't too vague but I need to know where I should start. I don't think it matters but, I have an s14 sr.

Edit...So I just checked the fuse(15a) and its fine. I took out the relay and I'm not sure if its the prob.
I tested all contacts from the relay and this is what happened 3 and 5 show power but 1 and 2 don't. According to this diagram on the relay...
3 o__o / o__o 5

1 o___m____o 3
...3 and 5 are switched legs and 1 and 3 should be constant, correct? With the key turned in the "on" position 3 & 5 have power but 1 and 3 dont...does the relay being in place make them turn "on"?
You know I'm gonna make a jumper for 1 & 3 and see if that will solve it.

MELLO*SOS
12-19-2006, 09:30 AM
Are you getting spark? Or do you smell fuel in the exhaust after cranking?

S14DB
12-19-2006, 09:43 AM
You check the relay? Also check the terminals on the tank for power. I think it may be a power supply problem

DrtyRat
12-19-2006, 09:47 AM
Ok...it starts. I took the relay from the EGI and put it on the one for the fuel pump and it started. Does that mean it was a bad relay? I would think that it does since the relay from the egi made it work but what about the relay that I put on the egi(from the fuel pump)? I hate being a newb on this stuff but what is the egi?
Does that make sense?

Edit....From wikipedia... NISSAN EGI (ECCS) (electronic gasoline injection) electrically controlled gasoline injection
This sounds important...:worried:...Oh man I feel so helpless when it comes to cars

DrtyRat
12-19-2006, 01:31 PM
SAved myself some worry and bought a new relay...good as new!