interesting. I've seen people running it on k03 tunes no problem. and those are definitely not tuned for it
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Fighting with P2177 (running lean)
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interesting. I've seen people running it on k03 tunes no problem. and those are definitely not tuned for it
Intake manifold where the PCV hose connects. Get a 3/8 hose and cigar and start blowing smoke
tobacco is wacko jk.
could i just have the car idle and put a cigar or cigarette on the end of the hose and let the vacuum pull the smoke in? I really cant imagine taking fat rips and blowing the smoke in lol.
I used to smoke myself and it even made me feel sick. Well...I took a piece of cardboard, burned the end for a minute, put it out, and let the smoke from the smoldering cardboard get pulled in...might get some ash in there, but I highly doubt that will hurt anything. Put a piece of screen over it if you're worried.
No though, just holding a cigar there won't produce enough smoke.
You could also use a stick or something btw.
I dont think this will work with engine on since its under vacuum. I would think all the smoke would you just get sucked in by the engine and come out of the exhaust side... but I've never done it so I could be wrong. but I do know that proper smoke and leak tests are done with the engine off
Yeah, that's why I suggested the cigar, plug the hose to the manifold with engine off, and blow some smoke in there. There are some ways to make cheap smoke testers though.
https://youtu.be/8aTAwO-2-6k something like that
Still at 17 with LTFT. I do see P2177 popping every now and then, but only as soft code so no CEL.
The car drives better but still has its hesitation moments.
Does anyone know if the secondary (after cat) O2 sensor has anything to do with fuel trims? All I know is it's only doing cat performance tests and with a tune it gets ignored.
I would really like to get to the bottom of this somehow...
The car drives better but still has its hesitation moments.
Does anyone know if the secondary (after cat) O2 sensor has anything to do with fuel trims? All I know is it's only doing cat performance tests and with a tune it gets ignored.
I would really like to get to the bottom of this somehow...
That's what I thought..
Could an EVAP leak cause fuel trim issues? I know that gases from the evap canister are being sucked into the intake manifold. Not sure what kind of volume are we talking about and I don't see how it can be metered as the MAF is on the intake but I'm thinking maybe a leak there could cause a significant amount of non-metered air to get into the intake manifold.
Could an EVAP leak cause fuel trim issues? I know that gases from the evap canister are being sucked into the intake manifold. Not sure what kind of volume are we talking about and I don't see how it can be metered as the MAF is on the intake but I'm thinking maybe a leak there could cause a significant amount of non-metered air to get into the intake manifold.
Good god, You are seeing max retardation across all cylinders in a run. Surprised car didn't go into limp mode. ECU can pull a max of 12 degrees which is a LOT. With max timing pull across all cylinders even at partial throttle I would be very suspicious of something like a bad knock sensor providing a false reading and causing all of that timing pull. If it were really that lean I would expect to see some difference between partial throttle and and full throttle in terms of timing pull.
Yeah, in the winter when I had 22 LTFT it was bad. I don't really know what changed now that it dropped to 17. Winter gas, less denser air, I really have no idea.
I will have to do newer logs to see if I can spot anything new but I'm at wits end with this car..
I will have to do newer logs to see if I can spot anything new but I'm at wits end with this car..
I've decided for now to focus some more on vacuum leaks and today I tried to test the brake booster hoses, valve and brake booster itself with a hand vacuum pump and gauge.
The valve seems fine letting air go to the intake manifold but not back. Hoses have no cracks but what I've found really strange is that the brake booster doesn't hold vacuum at all. Not sure if it's normal or not but I expected it to hold.
My brakes are working correctly but I discovered that if I pump the pedal quickly when the engine is running, the idle starts to bounce and on my boost gauge I see the vacuum raising from 22 to 18 Hg.
Again not sure if all this is normal or not.
I'm doing all this to figure out if I have a small leak at the brake booster that the vacuum pump can overcome and keep the brakes working properly but enough to throw off my fuel trims.
The valve seems fine letting air go to the intake manifold but not back. Hoses have no cracks but what I've found really strange is that the brake booster doesn't hold vacuum at all. Not sure if it's normal or not but I expected it to hold.
My brakes are working correctly but I discovered that if I pump the pedal quickly when the engine is running, the idle starts to bounce and on my boost gauge I see the vacuum raising from 22 to 18 Hg.
Again not sure if all this is normal or not.
I'm doing all this to figure out if I have a small leak at the brake booster that the vacuum pump can overcome and keep the brakes working properly but enough to throw off my fuel trims.