buying a used HPF M3

Originally Posted by turboi

High idle, rich conditions etc are all signs of boost leaks, test it with a home made boost tester to make sure 100% there are no leaks, or take it to a performance shop and they can test it there.

With that said i love how hpf just sits back and watches you suffer while you pour countless of hours and dollars into the car, after they ok'd it and said it was fine to leave.

u clearly havent read the thread, nor know what has transpired

Originally Posted by turboi

With that said i love how hpf just sits back and watches you suffer while you pour countless of hours and dollars into the car, after they ok'd it and said it was fine to leave.

s. T. F. U.

Originally Posted by turboi

.

With that said i love how hpf just sits back and watches you suffer while you pour countless of hours and dollars into the car, after they ok'd it and said it was fine to leave.

S T F U X88788383883

Originally Posted by turboi

With that said i love how hpf just sits back and watches you suffer while you pour countless of hours and dollars into the car, after they ok'd it and said it was fine to leave.

S.T.F.U. X 10,000,000.

Hpf Has been helping me a lot. I have no issues with them at all. I'm glad for their support and the support i have received from this forum and a lot of caring people r going above and beyond to help me out. Yes I'm frustrated with this problem but it's a car that's hard to diagnose because u cant use factory codes. it will be sorted out. The car has had a lot of improvements since I have bought it and just have this snags to deal with. Apparently the bat harness is almost ready to ship so
My logs can be diagnosed at Hpf.

Originally Posted by being3

Car is at afr at idle 12s then down to 11a and 10s. And 10.0 at high boost sometimes it's 10.5

Originally Posted by HPF Chris

That's fine.

That is certainly not fine. Perfect way to wash the cylinders and dilute the oil.

There is no need for a car to idle that rich.

Originally Posted by Tchleung

That is certainly not fine. Perfect way to wash the cylinders and dilute the oil.

There is no need for a car to idle that rich.

10:1 to 11:1 on full boost is perfect for our kits. 14:1 is ideal "at idle", but we will usually see between 13:1 and 14:1 at idle. 12:1 is a little on the rich side at idle but won't hurt your motor any.

Chris.

Originally Posted by HPF Chris

10:1 to 11:1 on full boost is perfect for our kits. 14:1 is ideal "at idle", but we will usually see between 13:1 and 14:1 at idle. 12:1 is a little on the rich side at idle but won't hurt your motor any.

Chris.

I am seeing 10.0 at idle at times and others times between 10.5 and 11.1 max. On the rare occasion I see 12 for a few seconds. I have never seen 13 to 14

Originally Posted by being3

I am seeing 10.0 at idle at times and others times between 10.5 and 11.1 max. On the rare occasion I see 12 for a few seconds. I have never seen 13 to 14

Your car should not idle at 10.0 or you will foul the plugs immediately.

Chris.

Originally Posted by HPF Chris

Your car should not idle at 10.0 or you will foul the plugs immediately.

Chris.

Believe me the plugs r black and my wife's tired of me smelling like raw fuel. Since changing the vanos selinoid it now only hits 10 at a stop
Light and moves to 10.5 an while driving lightly it's at 11.5 to 12. I have gone over this car with a fine tooth comb so I'll be sending in my aem for the logs to be diagnosed

My apologies if this has been asked/mentioned but I didn't see it while searching the thread.

Have you done a compression test.. the symptoms you're experiencing sound very similar to a oil contaminated cylinder. Are all your plugs equally fouling? When my car was getting blow by my afr's would be doing exactly what you're describing.. oil was getting past the rings and mucking it up..

EDIT: I searched compression, but I see now you've had a leakdown done. So disregard.

Originally Posted by MarcusLSB

My apologies if this has been asked/mentioned but I didn't see it while searching the thread.

Have you done a compression test.. the symptoms you're experiencing sound very similar to a oil contaminated cylinder. Are all your plugs equally fouling? When my car was getting blow by my afr's would be doing exactly what you're describing.. oil was getting past the rings and mucking it up..

EDIT: I searched compression, but I see now you've had a leakdown done. So disregard.

I have checked the plugs a few times and they r all the same. Since the vanos selinoid fix the plugs look much better an r consistent across all cylinders.

Originally Posted by turboi

High idle, rich conditions etc are all signs of boost leaks, test it with a home made boost tester to make sure 100% there are no leaks, or take it to a performance shop and they can test it there.

With that said i love how hpf just sits back and watches you suffer while you pour countless of hours and dollars into the car, after they ok'd it and said it was fine to leave.

Do you have a hpf m3 or even an m3 boost leaks dont cause idle problems. Only vac leaks. And a vac leak would cause a high idle. I can completely remove my manifold and the car will still idle just fine. Anything pre icv dont matter when it comes to idle. Please stop chim'n in if you dont know what your talking about.

Sent from my PG86100 using Bimmer App

Originally Posted by HPF Chris

10:1 to 11:1 on full boost is perfect for our kits. 14:1 is ideal "at idle", but we will usually see between 13:1 and 14:1 at idle. 12:1 is a little on the rich side at idle but won't hurt your motor any.

Chris.

What about when the A/C is on ? is it the same?

MM

Originally Posted by red375

What about when the A/C is on ? is it the same?

MM

Started the car cold. Afr Hits 10.0 then the oil for the vanos comes on line about 15sec. Then afr climbs to 11s. Shut car off. Start back up. Afr starts at 14.7 stays for about 30sec. Then falls down to 11.5. Put ac on afr climbs to 12.6. Shut ac off and afr back to 11.5. This is all cold start. Idle rpm about 1100

Here is a video of cold start. The car has sat all night.

The u can hear the vanos oil pressure come up and see the afr go from 10.0 climb to 11s. U can also hear a high pitched squeal. I believe that's vanos pressure. I have heard this sound and for example and seen the afr from 14.7 drop very quickly to 11.5 when warm. Anyone expierence that sound before. ?

Something is wrong there... At idle mine is right at 14 and 24

Ok here is my idle after some
Changes by ultrasonic cleaning of vanos oil regulator and value
Body. It's better but still a concern. A/C makes a difference if anyone wants to shed like on what that could indicate.

Have you checked your Exhaust Hub for tab breakage?

Originally Posted by Commanderwiggin

Have you checked your Exhaust Hub for tab breakage?

No I haven't as I it sounds fine at idle and I thought it made a lot of noise if it was broken.

I am starting to think I might be vanos oil pressure related.