[135Pats]

Useless bump but WE

Passed with all monitors reporting ready this morning. Didn't do anything out of the ordinary. Weird thing is the car was still throwing the trimming codes, which are supposed to light up the dash. But nothing happened and they didn't even bother with the mirror check. Guy started asking about the wheels and literally put the mirror to the side to take a closer look.

Lol.

Lesson learned: Emissions are EZ mode, no reason to stress.

[dulak]

That's great news!

[danniexi]

ever figure out the trim control and the 2C6A codes? these are the only two codes that I'm dealing with right now.

[135Pats]

Originally Posted by danniexi

ever figure out the trim control and the 2C6A codes? these are the only two codes that I'm dealing with right now.

No, I passed emissions so I never bothered chasing them down further.

[V8bait]

Originally Posted by 135Pats

Lesson learned: Emissions are EZ mode, no reason to stress.

Mention 15 degree timing maps and nobody bats an eye, mention emissions and everybody loses their mind

[danniexi]

Originally Posted by 135Pats

No, I passed emissions so I never bothered chasing them down further.

but don't they bring up SES/check engine lights and also cause drive ability issues?

[2jzn54]

after all this it was never solved! whatever as long as you passed emissions lol.

[135Pats]

Originally Posted by danniexi

but don't they bring up SES/check engine lights and also cause drive ability issues?

Nope, not really. They came up when the DPfix went in, and went away when the DPfix was pulled.

Never have seen them before or after.

Originally Posted by Daily Three

after all this it was never solved! whatever as long as you passed emissions lol.

Exactly. No idea what caused it but could care less at this point.

[danniexi]

Originally Posted by 135Pats

@steveaz
To this point there haven't been any CEL or SES, but i'm going to reflash to a stronger scalar. I did a ton of highway driving this morning with somewhat modest load, so that constant fuel demand is probably what caused the mixture code to finally pop up. 2 days of putzing around the city didn't trigger anything.

SO i'll reflash to the 1.2-1.25 fuel scalars tonight and go from there. My only real concern now are those bizarre lambda heating codes. No idea if those effect readiness - FWIW they do not throw any in-dash codes etc.

No evap or catalyst inefficiency codes to this point so for all I know, the car could still be ready to pass.

Originally Posted by 135Pats

Yes, those are the codes in question. In a nutshell, for whatever reason the DME was struggling to properly trim fuel when I switched to a pump gas flash. Mind you, this car has seen pump gas a grand total of twice in the last year and change, so the scalar adjustment was significant.

It *appears* that i've been able to remedy this by upping the pump gas scalar to 1.1, though as Steve noted it should be stronger were I to really run this map. Since i'm just running it for emissions, I won't bother since trims are now in a safe (not optimal-but safe) range.

Sparknotes: Adjust scalar first and foremost if you are pegging trim and seeing lean/mixture codes.

random update, but I just wanted to say thank you. I used ATR and bumped up the stock map fuel scalar to 1.15 and fuel trims look a LOT better. Before it was pegging 15-20% but by bumping it up its under 10, but will do more testing and keep an eye on those trims.

not sure why the pump gas OTS maps are doing this. I ran my PTF E40 map and it was running like a dream with no issues.

[135Pats]

Originally Posted by danniexi

random update, but I just wanted to say thank you. I used ATR and bumped up the stock map fuel scalar to 1.15 and fuel trims look a LOT better. Before it was pegging 15-20% but by bumping it up its under 10, but will do more testing and keep an eye on those trims.

not sure why the pump gas OTS maps are doing this. I ran my PTF E40 map and it was running like a dream with no issues.

Good to hear. Scalar adjustments are quite easy and really help tackle a lot of the "basic" fueling issues.

[napeHbNYC]

Got same 4 codes in the first post right after I put the dp fix in. Funny thing is, last year I put it in and all was fine, this year it throws those codes.

[335_MI6]

Same thing is happening to me