The Nissan Path

VStar650CL

Chances are it's just locking and unlocking, but your fundamental issue is that the trailer is just too heavy for the truck to pull comfortably. It's expressing its discomfort by constantly shifting to maintain the powerband against the extreme load.

VStar650CL

If they're both hotter in front then they're both shot, especially if they're both hotter in front while the engine is misfiring. Unburned gas turns the a$$ end of a cat cherry red. I have to suspect one or both of yours are partially blocked.

VStar650CL

Yep, I was afraid of that. Collapsed frame underneath all that bent trim. Think of it this way, it buckled and went to heaven saving its owners. Kiss it goodbye fondly, it did its job.

VStar650CL

Wait a sec... IMPORTANT: Did you clear out the self-learning data after replacing the A/F? If not, pretty much all the P127x/P128x codes will keep coming back even though the problem is fixed. If your scanner has work support for clearing LTFT then you can do it that way, otherwise pull the MAF whil...

VStar650CL

My bad, I misread that. The 1.29V is slightly rich, about 14.0:1 (ideally should be 14.7:1). The ECM does cross-check S1 vs S2, so an S2 that's flatlined after the cat is "lit" can cause P127x/P128x codes. The S2's should both be switching once you raise the RPM's with the cats lit, from b...

VStar650CL

Your A/F sensors are centered at 1.5V and biased at about 0.3V, rich is lower than 1.5V and lean is higher. So there's no way either one should ever be reading 0.11V. That equates to about a 10.5:1 mixture, which is not even in the real world. The heaters have a common supply and share a common grou...

VStar650CL

The thermometer will tell you, just make sure it's fully lit before you test. Take it for a short ride, don't just idle it. If the outlet isn't significantly warmer than the inlet, the cat is dead and possibly blocked. You can also just pop the front O2 and see if it runs better. If it does, that ca...

VStar650CL

palmerwmd wrote: ↑
Wed Nov 22, 2023 8:02 pm
I doubt they will totoal it since it has so much book value.

I dunno, Palmer, I'd suspect that's worse than it looks. It will depend on how much damage there is to the structure underneath the left rear quarter trim. Pulling out and repairing a damaged quarter can run $10K+ all by itself.

VStar650CL

Neither of your cats are warmed up enough for those readings to mean anything. The front and rear O2's will both be switching when the cats are lit. The ECM determines the health of the cat by comparing the front/rear switching rates when cruising. S2/S1 must be 0.75 or less, a higher ratio means th...

VStar650CL

PS - The R51 Pathies with rear A/C had a heater pump to compensate for the cores being up so high relative to the mechanical water pump. Automotive pumps generate a lot of flow but not very much head, so when the core is mounted much higher than the pump then heat at idle can become an issue. So if ...

VStar650CL

Going back to (I think) around '02, it's Federal law that the A/C is supposed to run in any defrost position, to dehumidify the incoming air. It runs at minimum and it shouldn't actually reduce your heat much unless your heater core has a problem or the mix duct isn't sealing properly. Nissan HVAC's...

VStar650CL

I'm facing the exact same situation as you, please let me know how you handled it heardle Try unlocking the car with the driver's door cylinder. If that doesn't kill the alarm then the switch is probably shot and you need a new lock assembly. Just realized I typo'd on that previous post, should hav...

VStar650CL

Well, the wheel can't jump ten degrees off center without something slipping splines or jumping a tooth. Theoretically it's possible for loose rack bushings or other front end parts to cause it, but that's quite a lot of misalignment. It would be very uncharacteristic for anything beyond the rack to...

VStar650CL

It's been a very long time since I worked on an R51 steering shaft, but maybe this parts drawing can help clarify things: https://www.nissanpartsdeal.com/parts-list/2010-nissan-pathfinder/steering/steering_column.html?diagram=488_A002 Don't know what year yours is, but my recollection is that the de...

VStar650CL

In-out isn't what you're looking for, you're looking for loose clamps on the shafts or bad u-joints, anything that can make it jump out of position rotationally, not longitudinally. Loose splined-clamps will not be obvious from just jostling or pulling on them. The torque applied by the steering whe...

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