95 Beretta

Tiny
COTTS
  • MEMBER
  • 1995 CHEVROLET BERETTA
  • 6 CYL
  • FWD
  • MANUAL
  • 89,000 MILES
No power to fuel pump unless engine is turning over, 95z26 3100, replaced all components, motor has automatic wire harness, now is 5 speed, used jumper wire to jump neutral safty, any ideas?
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Tuesday, March 29th, 2011 AT 3:24 AM

4 Replies

Tiny
CARADIODOC
  • EXPERT
What's the symptom? The pump is working properly.
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Tuesday, March 29th, 2011 AT 3:40 AM
Tiny
RASMATAZ
  • MEMBER
To add on to this here's other suggestions

Pick your symptoms below check it and get back to us with some testing results

**Cranks but no start condition:

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if so, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.

**No crank at all/nothing/nada when key is engage to starting position

Could be a blown fusible link, the starter, starter relay, clutch switch/park and neutral switch/transmission position switch and ignition switch assuming the battery condition and connections are good. Note:If it doesn't apply disregard.
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Tuesday, March 29th, 2011 AT 3:58 AM
Tiny
COTTS
  • MEMBER
Thank u for your input, it's a mess. The pumps not getting power initially at all unless the key is turned all the way to crank the engine then the car fires right up. As soon as the key is let off motor stalls, starves for fuel. I replaced relay, fuse, idle control new and tried a spare computer. Everything is plugged in except the plugs for the auto tranny, we jumped the NS switch to get the motor to crank.? Is there something in those wires blocking power to the pump? Or could it be as simple as a ground?
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Tuesday, March 29th, 2011 AT 4:34 AM
Tiny
CARADIODOC
  • EXPERT
Some models use a tap on the oil pressure sending unit to keep the fuel pump turned on only when the engine is running. Low oil level can cause low pressure and that switch to not turn on. I'm not aware of any involvement of the neutral safety switch.
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Tuesday, March 29th, 2011 AT 5:03 AM

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