[tcw]

So I recently went from JB4 to Procede. I am full bolt-on so I am running the Stage 3 Aggressive 9-23 map. I am running very lean (~20:1) on WOT runs with maxed fuel trims. I have progressively upped the global OL setting which helped (originally maxed AFR) but still have very lean AFR's. Can anyone tell me why and how I can resolve this? These are on map 1.

Settings window (I changed the OL on each of the datalogs):


OL100:



OL:85

[JMARS]

Send logs to Shiv and he should be able to help you determine what's going on.

[jippii ensio]

Are you running 100% E85 or something?

[Ilma]

That seems unusual to be running out of fuel and maxing trims at only 14 psi of boost.

You should log fuel trims for bank 2 as well as bank 1 to see if they are both maxing out.

This will help rule out a faulty injector in bank 1 causing this issue.


You can also try increasing the cell values for open loop fueling in the user adjustable table.

Here is what I changed mine too:
.
.
.

[jippii ensio]

+1 for looking at both of the banks. If only one is running lean, you could have accidentally swapped the o2 sensors in your DPs. Or as Ilma said, you could have a bad injector.

[themyst]

Originally Posted by jippii ensio

+1 for looking at both of the banks. If only one is running lean, you could have accidentally swapped the o2 sensors in your DPs. Or as Ilma said, you could have a bad injector.

If he swapped front o2 sensors his car would be undrivable. If he swapped rear o2 sensors it would throw an SES light along with a code for swapped sensors, but would not affect trims the way the OP is seeing. He also did not appear to have these issues with his old JB4, which rules out hardware.

[tcw]

Originally Posted by JMARS

Send logs to Shiv and he should be able to help you determine what's going on.

I sent datalogs in this past Saturday, haven't heard back yet. I will try calling today.

Originally Posted by jippii ensio

Are you running 100% E85 or something?

I am running 93 octane gas, no E85 local to me unfortunately.

Originally Posted by Ilma

That seems unusual to be running out of fuel and maxing trims at only 14 psi of boost.

You should log fuel trims for bank 2 as well as bank 1 to see if they are both maxing out.

This will help rule out a faulty injector in bank 1 causing this issue.


You can also try increasing the cell values for open loop fueling in the user adjustable table.

Here is what I changed mine too:
.
.
.

I am logging both banks, they are just overlaying one another (you can see the blue and black line to the left before they both max out). The car ran fine before installing the procede (I was JB4 then JB4/meth, but no meth now). I also don't want to change the map yet as I feel that there must be something causing this.

Originally Posted by jippii ensio

+1 for looking at both of the banks. If only one is running lean, you could have accidentally swapped the o2 sensors in your DPs. Or as Ilma said, you could have a bad injector.

Both are logged.

Originally Posted by themyst

If he swapped front o2 sensors his car would be undrivable. If he swapped rear o2 sensors it would throw an SES light along with a code for swapped sensors, but would not affect trims the way the OP is seeing. He also did not appear to have these issues with his old JB4, which rules out hardware.

Right, the downpipes have been installed over a year with no issues.

[Joshboody]

Looks like both trims/AFR were logged and matching well. This seems to be a fuel pump issue. I don't remember the logging options in procede for fuel pressure, but you can use BT tool to see if you are short of target.

I believe HPFP would be more likely to throw a code... LPFP can easily be short of target without throwing a code. So if you wanted to "try" something, LPFP would be my guess.

[themyst]

Originally Posted by Joshboody

Looks like both trims/AFR were logged and matching well. This seems to be a fuel pump issue. I don't remember the logging options in procede for fuel pressure, but you can use BT tool to see if you are short of target.

I believe HPFP would be more likely to throw a code... LPFP can easily be short of target without throwing a code. So if you wanted to "try" something, LPFP would be my guess.

He can log fuel pressure to confirm. If voltage is between 4.0 and 4.3 its operating normally.

Like he said he did not have any issues with the JB4. this is tune related.

[Jeller]

Debug Byte 4 (LPFP voltage output) You can check on this one too, see if its dropping below 2V.

[tcw]

Originally Posted by Joshboody

Looks like both trims/AFR were logged and matching well. This seems to be a fuel pump issue. I don't remember the logging options in procede for fuel pressure, but you can use BT tool to see if you are short of target.

I believe HPFP would be more likely to throw a code... LPFP can easily be short of target without throwing a code. So if you wanted to "try" something, LPFP would be my guess.

Originally Posted by themyst

He can log fuel pressure to confirm. If voltage is between 4.0 and 4.3 its operating normally.

Like he said he did not have any issues with the JB4. this is tune related.

Originally Posted by Jeller

Debug Byte 4 (LPFP voltage output) You can check on this one too, see if its dropping below 2V.

Thanks for the input guys, I will try this when I leave school today. Called (voicemail) and emailed vishnu again so hopefully they will have some good information too.

[diddlkiss]

Originally Posted by Ilma

That seems unusual to be running out of fuel and maxing trims at only 14 psi of boost.

You should log fuel trims for bank 2 as well as bank 1 to see if they are both maxing out.

This will help rule out a faulty injector in bank 1 causing this issue.


You can also try increasing the cell values for open loop fueling in the user adjustable table.

Here is what I changed mine too:
.
.
.

when I run your map,I got 10738 and 10722 codes,its looke like a hpfp,but my hpfp is the new pump,the parts codes is 13517616170,

[Jeff@TopGearSolutions]

Originally Posted by tcw

Thanks for the input guys, I will try this when I leave school today. Called (voicemail) and emailed vishnu again so hopefully they will have some good information too.

If you called today you called to early. They are based out of California.

Call them after 11 AM PST. Best way to contact Vishnu is by phone. They are flooded with too many emails.

[tcw]

Talked to Vishnu today. They told me Shiv thinks it is either the injectors or stock DME flash and to see how it does after I get the reflash and install the VFF700 kit next weekend. FWIW I had the injector recall before and they checked the injectors and replaced one bank. So we will see how it does after I install the VFF700 with the DME flash.

Although I think something is amiss somewhere with max fuel trims on pump gas at this low boost, but we will see. I also was not able to log that LPFP voltage as it snowed and I had to leave my car at my school parking deck. I'll report back the LPFP diagnosis hopefully tomorrow.

On a more positive note, my Kosei K1's and Hoosiers arrived today. Should have some drag times March 23rd when the track opens and some dyno numbers sooner.

[marconi118]

i am in the same boat, maxing out fuel trims from 11pss with procede agressive

both lpfp and hpfp pressures are fine

[Jeller]

Do you have the same issues if you run the previous auto tuning maps?

And have you gotten or thought about the procedeflash?

[BigBoosting]

Dont simply assume the Procede flash will solve your problems. I thought the same and when the flash came back I had new problems that Vishnu refused to acknowledge.

Wouldn't return my phone calls or emails. Its been 2 months and I'm still waiting on my "Guaranteed he will get to you this time" reply from Shiv himself.

If you don't live near them I would stay away from the flash option. It is impossible to get any help otherwise, even when they make a mistake.

My car is now totaled (thanks to a dump truck losing its cargo on the interstate) so my muffed DME is in the junkyard where it now belongs.

[cn555ic]

Bro. Why not just go back to jb4 and see if it still leans out that bad.

[tcw]

Originally Posted by cn555ic

Bro. Why not just go back to jb4 and see if it still leans out that bad.

Putting on a VFF700 kit next weekend.

Well I did another datalog with 3 different fuel pressure parameters logged. Also my old logs had debug type 4 already logged as well so that is included as well.





My OL fuel map:

[sickem]

^^Now that is a literal definition of screenshot! LOL. I have a similar issue...maxing out fuel trims at 14 psi on pump gas, also throwing 29E0/1 fuel mixture codes, which I presume are related. But my car throws these codes even on stock tune. Called VAC to see if they can help me, but they havent called me back..,pretty disappointed, actually.

[jpsimon]

TCW, shoot me your email address i'll send you what works great on my car. Couldn't hurt to try. the 4-23 aggressive map has never faulted me.

[diddlkiss]

Originally Posted by jpsimon

TCW, shoot me your email address i'll send you what works great on my car. Couldn't hurt to try. the 4-23 aggressive map has never faulted me.

I want your maps also.

thanks so much!!