1997 Pathfinder dies after a couple miles..

Post by **VStar650CL** » Thu Aug 10, 2023 12:22 pm

macgiver wrote: ↑
Thu Aug 10, 2023 12:16 pm
gotta stop stealing things off of Funk & Wagnall's front porch

Oxford. F&W is German, they probably won't burn easily.

Post by **macgiver** » Thu Aug 10, 2023 12:27 pm

you mean Fahrenheit 454 is a Question Mark ??

refer to ........NOW....THIS ! ! https://www.youtube.com/watch?v=XeolH-kzx4c......

ya

Post by **macgiver** » Thu Aug 10, 2023 12:33 pm

I wanna hear you cry , cry cry cry

Post by **VStar650CL** » Thu Aug 10, 2023 12:33 pm

macgiver wrote: ↑
Thu Aug 10, 2023 12:27 pm
you mean Fahrenheit 454 is a Question Mark ??

Not in England, but the Germans always used Bosch. Cook-off at much higher temperatures, look it up. It's right there in Funk & Wagnalls.

Post by **VStar650CL** » Thu Aug 10, 2023 12:34 pm

Besides, it's 451.

Post by **VStar650CL** » Thu Aug 10, 2023 12:35 pm

I owned a 454 but sold it. Besides, it was a Chevy and not a Fahrenheit.

Post by **macgiver** » Thu Aug 10, 2023 12:35 pm

I'ma ...https://www.youtube.com/watch?v=TiQUnxNEDqk

Post by **macgiver** » Thu Aug 10, 2023 12:39 pm

454 Casull...........................hits harder...................goes further ...........than Lite beer

Post by **macgiver** » Thu Aug 10, 2023 12:43 pm

does'nt 454 TRUMP 451 ? huh? ya....huh? ya

Post by **VStar650CL** » Thu Aug 10, 2023 12:59 pm

macgiver wrote: ↑
Thu Aug 10, 2023 12:43 pm
does'nt 454 TRUMP 451 ? huh? ya....huh? ya

Only if you're a Trump voter. I have no idea what he drives, but I'm pretty sure he burns at a lower temperature.

Post by **macgiver** » Thu Aug 10, 2023 1:23 pm

Maybe he can use a can of " Anti-knock " additive these days

..........

huh ?

Post by **macgiver** » Thu Aug 10, 2023 1:26 pm

...ya

Post by **macgiver** » Thu Aug 10, 2023 9:43 pm

Steevano , some say ? (Questionmark ) is Alice Cooper , no , but I have a story similar to your Richard Dean Anderson tale.
I'm in Tempe AZ , Halloween nite , like '79 or '80 and on stage is a guy in a FULL WHITE TUX , singing " I'm EIGHTEEN !! " , " Schhoooooooooools OUT " etc.........I say to bartender ........That guy 's do'in a pretty good Alice Cooper up there ? ! ? !
Bartender says ...............That IS ALICE COOPER , he does this time to time for Halloween nite

no szhitt now

Merlin's

Post by **Steevano101** » Fri Sep 01, 2023 10:34 pm

Finally had time to work on the pathfinder again. Replaced fuel reg., vacuum hoses, etc. and still same issue only it doesn't throw a code now. Going to pick up a new relay tomorrow. If that doesn't fix it, could it be an issue with the EVAP system? A vacuum hose blockage or something?

Post by **VStar650CL** » Sat Sep 02, 2023 4:48 am

Your evap pressure sensor is probably located in the canister like most Nissans, so yah, if you have a clog between the canister and tank that's causing purge to pull vacuum on the fuel tank, it would definitely cause fuel pressure to gradually drop off. You should be getting codes from that, so if you aren't I'm not sure why. But we're running out of possibilities here, there are only so many things that can kill fuel pressure. Try taking a drive with the fuel cap removed and see if it makes any difference.

Post by **Steevano101** » Sun Sep 03, 2023 7:20 pm

I'll do that. The vacuum intake line to the IACV was completely plugged. I cleared it out and it seems to take longer before the pressure drops and the IACV does start working after it warms up and you increase rpm. When the pressure starts dropping should I remove the gas cap to see if it's a vacuum issue?

Post by **Steevano101** » Sun Sep 03, 2023 7:23 pm

It just seems strange that when pressure drops if you turn it off and restart it you can hear the pump kick 9n and pressure is restored immediately? It's like the pump turns off? I live miles from town and this is my only transportation so I've been out of work for 2 months fighting with this damn thing...rrrr

Post by **mdmellott** » Sun Sep 03, 2023 11:08 pm

Steevano101 wrote: ↑
Sun Sep 03, 2023 7:20 pm
.. The vacuum intake line to the IACV was completely plugged. I cleared it out and it seems to take longer before the pressure drops and the IACV does start working after it warms up and you increase rpm. ..

There is no vacuum line to the IACV. Are you referring to the EGR valve right above it, to the rear of the upper intake manifold and how do you know either one of them are working? They kind of do their own thing quietly, engine warm or not, regardless of engine rpm.

Post by **mdmellott** » Mon Sep 04, 2023 11:25 am

Steevano101 wrote: ↑
Mon Aug 07, 2023 3:31 pm
Replaced the hose and drove it with a fuel pressure gauge hooked up. A mile down the road fuel pressure started dropping from 42 until it died. I could put it in neutral while still rolling and start it back up and fuel pressure would go back up to 42 and shortly start dropping again. I'm going to replace the filter and see if that makes a difference. If it doesn't, does that mean the new fuel pump is bad or could it be the fuel pressure reg?

Maybe you're right. When and why did you replace the fuel pump?

Post by **Steevano101** » Mon Sep 04, 2023 3:22 pm

2 months ago. Thought I had a clogged filter so changed it out with no change. I wasn't hearing the pump come on and no fuel would come out of the lines so I replaced it. Kinda thinking a got a bad fuel pump out of the box.

Post by **Steevano101** » Mon Sep 04, 2023 3:26 pm

Aren't there 2 hoses on the IACV, one goes to the manifold and one the box at the rear? The Line from the box was plugged but there was vacuum at the port on the IACV that the line going back connects to when you run the rpms up.

Post by **Steevano101** » Mon Sep 04, 2023 3:32 pm

I ran it until it started dropping psi then opened the gas cap, no change. When it died, with the key still on, I hit the pressure release on the gauge just to see if the pump would come on at all and nothing. I turned the key off then to acc and it pressured right up. Go9ng to pull the cover off the pump and check for power to the pump when it dies. I'm guessing if it has power still but the pump isn't running, the pump is bad. I don't think it would be a ground or bad connection because it's too consistent...?

Post by **Steevano101** » Mon Sep 04, 2023 3:36 pm

2 months ago. Thought I had a clogged filter so changed it out with no change. I wasn't hearing the pump come on and no fuel would come out of the lines so I replaced it. Kinda thinking a got a bad fuel pump out of the box.

Post by **mdmellott** » Mon Sep 04, 2023 5:07 pm

Steevano101 wrote: ↑
Mon Sep 04, 2023 3:26 pm
Aren't there 2 hoses on the IACV, one goes to the manifold and one the box at the rear?

Nope. That's the EGR valve, which is shown in the picture I posted with an arrow indicating where the IACV is located.

Post by **mdmellott** » Mon Sep 04, 2023 5:10 pm

Steevano101 wrote: ↑
Mon Sep 04, 2023 3:36 pm
Kinda thinking a got a bad fuel pump out of the box.

I'm kinda thinking you might be right.

Post by **mdmellott** » Mon Sep 04, 2023 9:20 pm

Steevano101 wrote: ↑
Fri Sep 01, 2023 10:34 pm
.. Going to pick up a new relay tomorrow. If that doesn't fix it, ..

Did replacing the relay have any effect?

Post by **Steevano101** » Mon Sep 04, 2023 10:15 pm

No change...

Post by **Steevano101** » Thu Sep 14, 2023 4:41 pm

Turns out it was a bad fuel pump out of the box. After exhausting everything I could think of I pulled the new pump I had installed and returned it under warranty for a new one and it ran perfectly, for 3 days. The only issue was it idled at 1k-1100rpm and was throwing a P0505 code but started first try, ran great, had plenty of power, life was good. My GF used it and asked a mutual friend (that prior to this I considered a good mechanic) about the high idle). Well the idle is now @ 1400rpm if it's not surging, doesn't want to start and if it does you have to work the pedal to get through the stumbling to get it to run. Every stop sign is a challenge to keep it running and get the rpms up so it won't stall... It has NO power, foot to the floor and it barely creeps up on power.and still throws the P0505 code and sometimes an EGR Code or Random Misfire code and just now a P0174 , and now won't start...lol. Could all this be related to a Bad IACV or should I just find a cliff and give it a Push?

Post by **mdmellott** » Thu Sep 14, 2023 6:58 pm

Steevano101 wrote: ↑
Thu Sep 14, 2023 4:41 pm
Could all this be related to a Bad IACV or should I just find a cliff and give it a Push?

Could be part of it and might have been all of it until your friend messed with it. If the idle adjustments were randomly tweaked to drop the idle, you need to get it back to the proper adjustment settings. Check out the Basic Service Procedures for Fast Idle Cam, Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment starting on page EC-34 of the factory service manual. https://www.nicoclub.com/service-manual ... 8%2Fec.pdf Get this back to "...started first try, ran great, had plenty of power, life was good" before your your "mechanic" got hold of it. If you get it back to just having an idle up around 1000rpm and just the P0505 code, read up on the IACV-AAC valve starting on page EC-323 to see how you can test it, clean it, replace it, or fix any wiring issue that may be ailing it.

Good luck and don't do any cliff diving.

1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

Re: 1997 Pathfinder dies after a couple miles..

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