running rich at wot

[crasth]

i did some logging today but my car seems to be running rich at WOT. fuel pressure seems ok. im targetting 16.5psi but i never get it in 3rd gear. i took it to jimmy couple weeks ago and he said there is no boost leak. in 4th gear i get around 16 psi. but not in 3rd. anyone has any comments as of why is it so rich now? it didnt do that before.

cs sri+tih 91 oct. 11718

[SomeGuy]

LoL get a tune you noob...prolly fubar'd MAF cal and shitty targets with some knock sprinkled in to make it even worse.

[crasth]

LoL get a tune you noob...prolly fubar'd MAF cal and shitty targets with some knock sprinkled in to make it even worse.
Im just waiting for spring to get a tune so eventually i will, doesnt mean someone could maybe gimme some feedback without being a dick...

[mickey_g]

Switch your blowoff valve to full recirc and see if it fixes the rich AFR. Could also benefit from a MAF cal

[Kiyomi]

that is pretty rich 8.5-9 afr steady wot. prob why your not knocking seriously atm, but it must feel much slower. what did u do before this happened?

as others have said, maf cal should help.

[SomeGuy]

Switch your blowoff valve to full recirc and see if it fixes the rich AFR. Could also benefit from a MAF cal

Should only show up between shifts unless the BOV is leaking metered air to atmosphere.


Im just waiting for spring to get a tune so eventually i will, doesnt mean someone could maybe gimme some feedback without being a dick...

Nah, what fun is that? :D

For the record, I gave you good feedback...get a tune. If Jimmy says there isn't a mechanical issue, than it's obviously your tune.

[crasth]

Switch your blowoff valve to full recirc and see if it fixes the rich AFR. Could also benefit from a MAF cal
Its actually to full rec now, when i had it 50/50 i didnt have this issue so i dontthhink thats the cause

[loki]

Switch your blowoff valve to full recirc and see if it fixes the rich AFR. Could also benefit from a MAF cal

That shouldn't do anything, since the bpv or bpv doesn't come into play at WOT

[mickey_g]

guess its not the valve then...usually with rich AFR issues its usually a leak or the tune itself. Try a MAF cal and see if that helps

[crasth]

Should only show up between shifts unless the BOV is leaking metered air to atmosphere.



Nah, what fun is that? :D

For the record, I gave you good feedback...get a tune. If Jimmy says there isn't a mechanical issue, than it's obviously your tune.
Yeahh i want a tune, just wanna have a dp and intercooler before that. Maybe one of those stratified ots tunes help? Cuz ive been thinking about those

[mickey_g]

yeah a custom OTS tune should keep you satisfied until you get your other mods...thats what I did until had all the mods and then got a full custom tune

[crasth]

that is pretty rich 8.5-9 afr steady wot. prob why your not knocking seriously atm, but it must feel much slower. what did u do before this happened?

as others have said, maf cal should help.
Yeah its pretty rich, i havent done anything to the car and before this it was fine. And yeah good i have no knock

[SomeGuy]

guess its not the valve then...usually with rich AFR issues its usually a leak or the tune itself. Try a MAF cal and see if that helps

Technically gen2's use fuel trims during WOT unlike gen1's...so regardless of MAF cal it should run fairly close to target unless it's WAY off or is throwing it into a strange place in the tables.

Even if he doesn't get a tune right away, he should try running a different applicable map (Stage 0, stratified OTS, etc) to see if it makes a noticeable difference in AFR's.


Yeah its pretty rich, i havent done anything to the car and before this it was fine. And yeah good i have no knock

Uh yes you have knock, it's not major (ie <1) but it's still knocking. Just the pig rich fueling will provide extra cooling which help prevents early detonation a bit.

[speed77]

Would probably help if you post the map you were running when you took the log. That way you can compare your targeted vs logged values.