will15

What in the tune can cause boost sensor codes p0236 boost pressure sensor, p0238 boost sensor circuit high apart from over boosting which it’s not. We have tried a nother sensor, I know it could be wiring to. I was just wondering if some thing else tune wise can cause this, it had been tuned and running good for about 3 months prior to the codes.

I’m more then likely going to have to tune this car after some issues are fixed, I have sucked the tune out to have a look at it and it come up with a note saying I have to license it before I can look at it or tune it. (Please see attached pic) I think it is a sct flash tune will it definitely work?, just don’t want to waste 3 credits on it to find out I can’t do it.

Yes it is commanded afr not wide band, I don’t have a wide band in the car at the moment. But I can see the narrow band o2 go lean when the ecu commands this and the car will stumble and nilly stall when I’m driving up the road at about 40km. I can get a lot of it happening but I’m using hp tuners for the logging.

Ok cheers.

I’m tuning to cars at the moment and they both do it about 30sec to I minute from cold start around 23 deg coolant temp.

I’m getting it a lot better, but the only way it works is to use the PIP table backwards then what you guys have said. Say the PIP table is stock and I log cold start inj timing will be say 10ms, then I half the valve in the PIP table inj timing will be 5ms. So then I double stock value it will be 20ms. It seems to work well so I don’t know. Then only other problem is about 40 seconds in to a drive after cold start it will command 1.20 lambda and stumble. I have gone though every table I can think of and it still dose it.

F6 tune is a lot better, I did this with my 2008 g6e.

Danny?, how do I get in contact with him?.

I though I read some where a while ago we can set up a fail safe for the flex fuel custom os. Eg if I’m running e85 and some how lose my voltage in put can we stop it going back to the pump fuel tune and hurting a engine?

This table definitely makes a big difference in commanded lambda, helps stop the stalling when cold and you put the can in drive or reverse.

I just tried that pip crank table as stock, the car has not been started today with 17deg ambient temperature and it took like 5 go’s for it to start. It was starting first kick with the high numbers in that table at 17 ambient temp

So smaller numbers is richer?, I was thinking the other way. I don’t really understand your explanation of how the table decays form commanded lambda from very lean to the actual commanded lambda

I don't know why what im commanding is not working, iv made open loop longer but 3 seconds after the car starts its commanding 1.03 with engine temp at 10 deg (in open loop). The engine wants more fuel and I can't give it to it. I have posted a tune if anyone would like to check it out. e85 finished.tec better starting.tec

Yes adjusted cold base, it even dose it in open loop. I might extend the time for closed loop to enable though, it won’t hurt the situation.

So didn’t start first kick this morning but did on the second, so it is better. I think I’m missing a table that is stopping me commanding the afr I want but. Say you at 15 deg engine coolant and I have set 0.75 lambda, with in seconds of the engine starting it go’s straight to 1.0 lambda. Is there some other table that could over ride all of the above fuel tables that have been discussed above?.

haha now that's dedication, I think iv made some head way with this I have increased spark to 15 and upped the crank multi a shit tin and it busted off first crank this arvo. I will check in the morning and see how it is should get down to around 10deg tonight so see what happens. I did adjust the auf1721 and have noticed that with the flex fuel os there is no blend table, so will see how that go's when I finish tuning the other car on flex.

I have pretty much adjusted all those tables, it just felt like I was going way to far with them, eg to rich. Ill do some more testing, just sucks only getting a couple of shots at it per day

haha ill try it the other way, iv heard conflicting things on timing for cold start with e85

I did auf0209 this morning before I saw your post, dropped cranking from 10deg to 5deg, didn't really help.

With the standard os I have adjusted auf0173, auf0181, auf0180. But for the custom os with flex fuel there is no blend map for auf0173, but there a few other lambda compensator table's.

just fuel at this stage

Looking for some cold start info for e85, for both flex fuel os and standard os. Iv have played with some cranking tables and temp related lambda tables and improvements are little for the changes iv made.

Any chance changing to a custom is for flex has stuff up the ability to use hp tuners as my scanner?. I can’t log crap all now only really basic stuff.

I must be blind, can't find them any where. What location?

Where’s the fault code list in the editor? Eg if I want to turn off rear o2 faults so you don’t get a check engine light if you have high flow cats.