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1988 Nissan Pulsar SE Engine is CA18DE Fuel pressure is good@ 68psi, still have spark, cranks but doesn't start. Fixed the tps and car almost starts. Then it backfires.

So i tested the tps for voltage it sits @ 9.48 volts and drops to 0 volts when throttling. Is that normal?? While i was testing i kept hearing a clicking noise like a bad solenoid. so i traced it to the fuel system in the engine bay. The fuel pump relay is new and i still have the old one. But as this "solenoid" clicks the fuel pump corresponds with the clicking. not sure where to find this "solenoid." Any Ideas??? I was told that it could have a fuel pressure regulator valve or a fuel pressure solenoid. If so where is it located?? and do you have a part number??

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 99 Answers

SOURCE: 1999 chevy blazer fuel problem

probably not fuel filter . probably going to have to remove the upper intake and replace the fuel injector spider(fuel inj assebly) if it is droping fuel pressure it is leaking into the upper manifold

Posted on Nov 30, 2008

Molson02536
  • 3854 Answers

SOURCE: fuel pump problems 2003 s10 chev 4.3 v6

Your ECU is what acctivates your fuel pump realy. Put the key on the run possition and pull the ecu fuse for a few seconds and reinstall it ans it should accivate your realy for 5 seconds, Good luck.

Posted on Apr 06, 2009

  • 850 Answers

SOURCE: 2000 elantra no power to fuel pump.

could be a bad earth or [ground]
the power wire ma be brocken or have a loose or dirty connection
you neeed to trace it along its lenght to determine the fault!
so start at the pump & work back
Cheers rob

Posted on Jul 20, 2009

  • 68 Answers

SOURCE: 1996 Toyota T-100 starting problem--- when I first

the fuel pump relay should be located in the under hood fuse box just replace the relay with a new one

Posted on Aug 11, 2009

jbass706
  • 167 Answers

SOURCE: MY Ford F-150 cranks but will not start. Check

Are you sure the spark is sufficient? I have seen weak coils cause your problem also bad coil wires loosing to much voltage to the distributor.

Posted on Oct 24, 2009

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1 Answer

1988 2.5E s10 no fuel


you mean,cranks ok, but will not start and no fuel , right>?
s10 no fuel. 1988 ( S10 blazer )
please do say , what that means.
1: car cranks and will not start. so must be out of fuel?
(over 50 causes, or better is 10 or less tests (ask)
2: same, and fuel pressure is 0 psi (spec.9-13). gauged.?
3: fuel dribble test?
4: sparks good so tired test fuel and it ran on test fuel ok? proving
loss of fueling>?
5: injector dead cranking, (eyeballs)

which was it?

1988 cars in the USA are BIG TIME TRANSITION year.
we went from CARBS to EFI.
2.5L (what is E)?
gear cam, roller HLA lifters.
your car, USA , is TBI engine,
TBI started on THIS car in 1985 (1/2 and 1/2)
Throttle body injection
an on all TBI engines, one can see it inject with eyes.
does it?
if not it can be the following things.
1: no fuel pressure, 9-13pis.
2: ECU is cutting fuel. Pressure good cranking.
2a: ECU is sending error for bad crank/cam sensors, and cuts fuel.
2b: ECU sees rpm or tacho line dead.
2c. ECU sees TPS sensor output as 4v or more cranking, this cuts all fuel.
3: if ECU is happy, it sends 12vcd to the pump, cranking.
all tests must be dont cranking or chase tail.

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1 Answer

No Injector Pulse


run fault codes as there is a problem sensor in the system. volts at the injector is suspect as the voltage will vary with the fuel requirement.

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I have a 96 Dodge Ram 1500. Cranks and runs fine but after it warms up it dies. After cooling off its as if nothing is wrong til it warms up again then dies and wont crank. Talked with one person that said...


I don't know what testing you have done? When it stalls if it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs, if spark everywhere, use a gage and check proper fuel pressure. Also, check fuel injector pulse. If your missing all three, I usually check the cam and crank sensors. There could be other issues? Any applicable trouble codes?

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