95 hard body won't start - Infamous Nissan

Ftown · 01-31-2021, 05:06 AM

Hello. I need some help! I have a 95 Hard body XE with a VG30E automatic. New timing set, plugs, wires, cap, rotor, fuel pump, filter, fuel pressure regulator (x2), injectors, water pump, thermostat. No codes on the ECU(think it showed 55?). Anyways, after all this, I can't get it to fire up. It will pop off with a shot of starting fluid. That's it. I've got injector pulse, voltage to the injectors, new ignition coil(forgot to list that). One thing I have noticed is that I don't seem to be getting fuel through the rail. It seems like it's stopping at the regulator??? How does the FPR operate? Can I manually open the FPR?

cadillacdude1975 · 01-31-2021, 06:18 AM

I do believe there is a way to trigger the relay. When it comes to things like this, a subscription to AllData is really worth the 25 bucks or so. AllData has all the diagrams and testing procedures that are in the Nissan field service manual.

Have you checked the ECM to see if it stored any trouble codes?

Ftown · 01-31-2021, 07:13 AM

Quote:

Originally Posted by cadillacdude1975

I do believe there is a way to trigger the relay. When it comes to things like this, a subscription to AllData is really worth the 25 bucks or so. AllData has all the diagrams and testing procedures that are in the Nissan field service manual.

Have you checked the ECM to see if it stored any trouble codes?

Not sure how to retrieve stored trouble codes? I am getting fuel to the rail. It just seems like it stops at the regulator. TWO separate regulators..

ahardb0dy · 01-31-2021, 04:20 PM

He said he got code "55" no codes. If it was starting before all the work you did than it is something you did, go back over everything you did and check to make sure you didn't accidentally disconnect something.

Ftown · 01-31-2021, 07:23 PM

It wasn't running when I got it. I've double and triple checked everything. Nothing is disconnected from what I can see. How does the FPR work? I'm getting fuel to the FPR, and nothing coming out the return. Does vacuum open it?

ahardb0dy · 01-31-2021, 09:29 PM

there is a vacuum line going to the FPR, it's a pain to even see the FPR on the back of the intake plenum, if you lean over the top of the engine you should be able to see where the vacuum line goes to.

Can see the FPR in this pic ( Courtesy of Nissanut):

http://nissannut.com/maintenance/vg3..._rail_assy.JPG

Ftown · 01-31-2021, 11:39 PM

Yeah, I know about the vacuum line. My question is does pulling a vacuum on the FPR open it? No fuel is passing through the FPR. This is the second one that is not allowing fuel to pass through.

ahardb0dy · 02-01-2021, 01:41 AM

Can you remove the FPR and test it off the engine?

Ftown · 02-01-2021, 01:42 PM

Yeah, I can. But, like you said, it is a pain in the a** to get to. Ill see if I can hook a vacuum tester up to it and test it on to the motor

ahardb0dy · 02-01-2021, 02:16 PM

I don't know if you touched the fuel lines to the regulator but just came across a guy on another forum that was having the exact problem that you are having, he said his 2 fuel lines were reversed, the line from the fuel filter was going to the FPR, he reversed the lines and it started right up.

Maybe the 2 lines where they connect to the fuel rail are reversed? Did you buy the truck not running ? You said it wasn't running before all the work you did, maybe someone else swapped the 2 lines ??

01-31-2021, 05:06 AM	#1
Ftown Join Date: Dec 2020 Location: Lakeland, FL Posts: 30 Vehicle: 1995 Hardbody XE V6 Thanks: 4 Thanked 1 Time in 1 Post	95 hard body won't start Hello. I need some help! I have a 95 Hard body XE with a VG30E automatic. New timing set, plugs, wires, cap, rotor, fuel pump, filter, fuel pressure regulator (x2), injectors, water pump, thermostat. No codes on the ECU(think it showed 55?). Anyways, after all this, I can't get it to fire up. It will pop off with a shot of starting fluid. That's it. I've got injector pulse, voltage to the injectors, new ignition coil(forgot to list that). One thing I have noticed is that I don't seem to be getting fuel through the rail. It seems like it's stopping at the regulator??? How does the FPR operate? Can I manually open the FPR?

01-31-2021, 04:20 PM	#4
ahardb0dy The Post Count Whore Join Date: May 2014 Location: Sorrento, Florida Age: 55 Posts: 7,745 Vehicle: 2017 Nissan Frontier Desert Runner Thanks: 68 Thanked 957 Times in 877 Posts	He said he got code "55" no codes. If it was starting before all the work you did than it is something you did, go back over everything you did and check to make sure you didn't accidentally disconnect something. __________________ My name is Tony and I'm a Infamousaholic Current truck - 2017 Nissan Frontier Desert Runner , (formerly owned: 1993 Nissan Hardbody king cab 2wd, 90 Nissan Sentra, 94 Nissan Pathfinder SE 4x4, 05 Nissan Titan, 87 Nissan SE-V6 4x4 king cab, 94 Infiniti Q45t & 80 Datsun 310GX )

01-31-2021, 09:29 PM	#6
ahardb0dy The Post Count Whore Join Date: May 2014 Location: Sorrento, Florida Age: 55 Posts: 7,745 Vehicle: 2017 Nissan Frontier Desert Runner Thanks: 68 Thanked 957 Times in 877 Posts	there is a vacuum line going to the FPR, it's a pain to even see the FPR on the back of the intake plenum, if you lean over the top of the engine you should be able to see where the vacuum line goes to. Can see the FPR in this pic ( Courtesy of Nissanut): http://nissannut.com/maintenance/vg3..._rail_assy.JPG __________________ My name is Tony and I'm a Infamousaholic Current truck - 2017 Nissan Frontier Desert Runner , (formerly owned: 1993 Nissan Hardbody king cab 2wd, 90 Nissan Sentra, 94 Nissan Pathfinder SE 4x4, 05 Nissan Titan, 87 Nissan SE-V6 4x4 king cab, 94 Infiniti Q45t & 80 Datsun 310GX )

02-01-2021, 01:41 AM	#8
ahardb0dy The Post Count Whore Join Date: May 2014 Location: Sorrento, Florida Age: 55 Posts: 7,745 Vehicle: 2017 Nissan Frontier Desert Runner Thanks: 68 Thanked 957 Times in 877 Posts	Can you remove the FPR and test it off the engine? __________________ My name is Tony and I'm a Infamousaholic Current truck - 2017 Nissan Frontier Desert Runner , (formerly owned: 1993 Nissan Hardbody king cab 2wd, 90 Nissan Sentra, 94 Nissan Pathfinder SE 4x4, 05 Nissan Titan, 87 Nissan SE-V6 4x4 king cab, 94 Infiniti Q45t & 80 Datsun 310GX )

02-01-2021, 02:16 PM	#10
ahardb0dy The Post Count Whore Join Date: May 2014 Location: Sorrento, Florida Age: 55 Posts: 7,745 Vehicle: 2017 Nissan Frontier Desert Runner Thanks: 68 Thanked 957 Times in 877 Posts	I don't know if you touched the fuel lines to the regulator but just came across a guy on another forum that was having the exact problem that you are having, he said his 2 fuel lines were reversed, the line from the fuel filter was going to the FPR, he reversed the lines and it started right up. Maybe the 2 lines where they connect to the fuel rail are reversed? Did you buy the truck not running ? You said it wasn't running before all the work you did, maybe someone else swapped the 2 lines ?? __________________ My name is Tony and I'm a Infamousaholic Current truck - 2017 Nissan Frontier Desert Runner , (formerly owned: 1993 Nissan Hardbody king cab 2wd, 90 Nissan Sentra, 94 Nissan Pathfinder SE 4x4, 05 Nissan Titan, 87 Nissan SE-V6 4x4 king cab, 94 Infiniti Q45t & 80 Datsun 310GX )

01-31-2021, 06:18 AM	#2
cadillacdude1975 The Gear Jammer Join Date: Apr 2013 Location: Chattanooga, TN Age: 48 Posts: 10,291 Vehicle: 87 VG33 Pathfinder SE 4x4 & 87 D21 SE Thanks: 430 Thanked 1,300 Times in 1,182 Posts	I do believe there is a way to trigger the relay. When it comes to things like this, a subscription to AllData is really worth the 25 bucks or so. AllData has all the diagrams and testing procedures that are in the Nissan field service manual. Have you checked the ECM to see if it stored any trouble codes?

01-31-2021, 07:23 PM	#5
Ftown Join Date: Dec 2020 Location: Lakeland, FL Posts: 30 Vehicle: 1995 Hardbody XE V6 Thanks: 4 Thanked 1 Time in 1 Post	It wasn't running when I got it. I've double and triple checked everything. Nothing is disconnected from what I can see. How does the FPR work? I'm getting fuel to the FPR, and nothing coming out the return. Does vacuum open it?

01-31-2021, 11:39 PM	#7
Ftown Join Date: Dec 2020 Location: Lakeland, FL Posts: 30 Vehicle: 1995 Hardbody XE V6 Thanks: 4 Thanked 1 Time in 1 Post	Yeah, I know about the vacuum line. My question is does pulling a vacuum on the FPR open it? No fuel is passing through the FPR. This is the second one that is not allowing fuel to pass through.

02-01-2021, 01:42 PM	#9
Ftown Join Date: Dec 2020 Location: Lakeland, FL Posts: 30 Vehicle: 1995 Hardbody XE V6 Thanks: 4 Thanked 1 Time in 1 Post	Yeah, I can. But, like you said, it is a pain in the a** to get to. Ill see if I can hook a vacuum tester up to it and test it on to the motor

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