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No Fuel Pressure?

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GSTdude06

15+ Year Contributor
481
11
Oct 29, 2005
Mesquite, Texas
Finished my 6bolt swap and I get spark but no fuel... I noticed that I have 0 fuel pressure... why? What could cause this? My injectors arnt firing either and I dont know why. Any help please ive been carless for over a year and its getting cold again! :(


Thanks,
Logan
 
there pluged in all the way, ive taken them off multiple times and put them back on. I have 3 vacuum hoses coming off the purge control valve that arnt hooked to anything, do I need them? Would a bad fuel pump give no pressure?
 
No fuel pressure = pump is not operating or the fuel pressure regulator is not holding pressure.

Check to make sure your fuel pump relay is good and your ECU is good. Make sure the pump is not dead.
 
How would I test the regulator for pressure? And the pump primes only when cranking, I always thought it primed till I started it...am I wrong?

Where is the plug you can hook a positive to and it jumps the fuel pump?




Thanks
 
How would I test the regulator for pressure? And the pump primes only when cranking, I always thought it primed till I started it...am I wrong?

Where is the plug you can hook a positive to and it jumps the fuel pump?




Thanks

You have DSMLink, right? If so, you can turn the fuel pump on with it.
 
How come when I first installed my fuel pump it stayed on, I remember cause it was annoying! But for some reason my DSMlink wont capture at all, I asked on the DSMlink forums but didn't get a clear response.

Should I try and jump the pump to see if it builds pressure?
 
How come when I first installed my fuel pump it stayed on, I remember cause it was annoying! But for some reason my DSMlink wont capture at all, I asked on the DSMlink forums but didn't get a clear response.

Should I try and jump the pump to see if it builds pressure?

What do you mean the pump stayed on?

Why can't you turn the pump on with DSMlink?
 
If you can't capture, you're probably not connecting, check the cable connections. Can you open miscellaneous and turn on the pump there?
 
I've checked all the cables, they seem fine. I even opened the connector that plugs into the car and it seemed fine. It kept giving me a command error saying it timed out.
 
Are you connecting the cable to your computer via serial port or USB port? If you're connecting through serial port, your serial port might not be enabled (since they're hardly used anymore). To enable it, you'd have to go into your BIOS and turn it on so that it can read the signal from the cable. If you need more help, let me know and I'll do my best.
 
Not sure where the fuel pump check connector is on a 2G... possibly the same place as on a 1G though, on the firewall right behind the battery. Just a connector with a single black wire with a white stripe on it. Supposed to have a dustcap that the connector is plugged into, mine's taped to a larger wire bundle, again toward the passenger side of the car.
 
Would those 4 like tranisters cause no fuel pressure? The ones behind the glove box.
 
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