Losing the battle, 2000 V70 GLT 2.4T

wo0ds · Post by **wo0ds** » 20 May 2025, 18:41

you're telling me. Spent around 4 hours at 2 different yards. Total of 5 chances. First one as you mentioned was NA and was a intake side. Second was a S80 had the turbo and the exhaust side solenoid, but different motors that used a different plug and solenoid was the kind you can't remove. Same story with the next 2 both S70s. Last one was the right everything. Was previously replaced with a Chinese shitty one and reeked of carb cleaner. Sunburnt a little defeated. Got some other goodies. Hood latch, but odds and ends mostly plastics that were in better condition than mine or bolts that weren't stripped. All part of the fun. Still going to replace the wiring on that section of the harness before I commit to a total new one. Or cave not sure yet.

wo0ds · Post by **wo0ds** » 23 May 2025, 18:41

All codes went away for 3 days after a oil change. This morning I made it to the corner and it idled just a little rough just for a second or two and the CEL came back. Again drove to work and home with no really noticeable symptoms. Codes came back pending on the old code (camshaft solenoid related) but my P0300 code was what triggered it. Can a bad camshaft valve solenoid throw this code occasionally? It's the first time I've seen it since I've done the PCV kit repair.

Post by **scot850** » 25 May 2025, 01:14

As Abscate mentioned, the solenoids are different. If they are genuine parts they should have inlet or exhaust molded in the aluminum of the unit.

The 4 things to me that can cause this issue are:

1) old engine oil
2) A failing CVVT solenoid or wiring.
3) A cam position sensor failing
4) The timing is out, possibly by a tooth on the belt.

There is a 5th one that is not covered in all fault code data. That is the crank position sensor also.

Neil.

wo0ds · Post by **wo0ds** » 27 May 2025, 01:25

What about a cold start p0300 only occasionally. Again every few days. I erased the code when it happend and it's been another 3 days since. Brand new pcv system too, new plugs also

Post by **abscate** » 27 May 2025, 03:48

Watch the misfire counters ( high end reader or VIDA)mto isolate which cylinder is misfiring. An intake manifold leak can also do this. P0300 is a misfire code without cylinder assignment. If you cannot watch the misfire counters , drive it fir a few weeks with the code on, and see if reports a p30x to guide you,

wo0ds · Post by **wo0ds** » 27 May 2025, 18:12

I previously took it to the best euro specialist in town and they did their own testing including and smoke test and couldn't find any issues. I hesitately did the whole pcv replacement while they had it. Which left me initially with that p1655 code. They even told me the condition of the system was not too bad. Whatever that means for a 25yo plastic and rubber system. That's when I went down my cvvt rabbit hole. The biggest difference so far was the oil change. I had cleaned the solenoid and valve before so and it only stopped codes for a couple days. But codes are becoming more rare and rare. The car was registered every year since 2000 but other than its last 6 months or so of last ownership it was being driven less than 2-3k miles a year. Those last months it was presumably (based on mileage difference) driven from Georgia to Arizona and for the the next several months upon arrival. The most miles it had seen since its owner before that. ( which was 7ish years) so I'm thinking other than the last bit of ownership it was maybe just a bit of a "grocery getter". Whoever it was they did have some mechanical know how using a self serve garage reported on the carfax 3 times in the last few months. Probably preparing for sale. Most notable all new struts and shocks and hardware. As much as it might go against my previous thinking, the car isn't suffering from failures as much as sitting or not being driven even remotely daily. Each day the idle gets smoother, the mpg is increasing and codes are again becoming less common. Even though I did just do a full synthetic oil change a 150 miles ago I am considering products like the 505 oil cleaner? Whatever that scotty Kilmer product is. Or just maybe try and get to a 1k miles do another early change.

wo0ds · Post by **wo0ds** » 30 May 2025, 14:32

Could a oil leak on my injectors be causing it? I replaced my filler cap and gasket but it still leaks from the base of it. Which alot of it does fall onto them

wo0ds · Post by **wo0ds** » 30 May 2025, 17:34

This is nuts! The CEL came back after clearing the p0300 again and for the first time it's given me a cylinder p0301! It has new spark plugs so I'll start by heading back to the pick n pull and grab a few coil packs and maybe some injectors if I can. I mean should I be looking at anything else?

Post by **scot850** » 30 May 2025, 19:33

Why not try swapping #1 and #2 coils and see if the issue moves. It may not be the coil, but this would help identify if it is and if it is worth spending money on a used coil.

Neil.

wo0ds · Post by **wo0ds** » 31 May 2025, 10:50

Good idea. When I looked at a diagram to just make sure what order they went in it also had the firing order listed. Cylinder 1 is first of course. So it occured to me, could this be a explanation to starting rough for 5 seconds and no other noticeable symptoms? I'm just trying to think out loud if you will. Or does that logic sound flawed? Starting to think the p0300 was not necessarily multiple misfires but the computer just couldnt identify where from. Just a old part trying its best and it takes a couple trys sometimes? Why it only comes on every 2 days or so

Losing the battle, 2000 V70 GLT 2.4T

Re: Losing the battle, 2000 V70 GLT 2.4T