|
Title: Fueling issues Post by: masterj on February 12, 2013, 10:51:20 AM Hi, peeps! :)
I can't properly dial in my fueling... Either it is me or my injectors, but I'm getting very weird lambda and injector time. Please check my logs and advise... TVUB: 11V - 1,20 12V - 1,03 13V - 0,90 14V - 0,79 15V - 0,70 KRKTE: 0,06438 FKKVS - 1s MAF original/nothing changed in maps either Title: Re: Fueling issues Post by: littco on February 13, 2013, 12:24:56 AM Dekka 630's?
Could be a sticking injector . Title: Re: Fueling issues Post by: masterj on February 13, 2013, 01:35:43 AM Dekka 630's? Could be a sticking injector . One more problem came today: two of my coils died. Bought FSI coils now. Gonna check fueling this weekend. P.S> My injectors are from SAAB 2.0T, code: 0280156023 Title: Re: Fueling issues Post by: masterj on February 16, 2013, 02:30:03 PM Updates: With new coils light throttle now is super responsive and fine, but part throttle and wot gives me a lot of fueling issues.
Load is going nuts too. Please look at my logs... Title: Re: Fueling issues Post by: masterj on February 27, 2013, 10:13:33 AM Anyone? Need help here... o2 is leaning mixture ~-20% at idle, at WOT ~-5%. Intake leaks? what variables to log? Trims going <-10% and cold start becomes very painfull. IF I disable fuel trims via nolra then cold start is fine as whole driving experience is ok.
Title: Re: Fueling issues Post by: masterj on March 06, 2013, 10:16:02 AM New symptoms... In idle if I pump up my brake pedal I get lambda correction +26% (I had to set my KRKTE to 0,06283 to prevent constant -26% correction at idle). Then it goes back again to normal if I stop pumping pedal. I suspect this might be related to Re: ME7.5 Lambda goes to 0.75 at idle, engine protection feature? (http://nefariousmotorsports.com/forum/index.php?topic=2610.msg25579#msg25579).
Before I had lowered KRKTE it was set to ~0.07 and my WOT was perfect but idle was -26%. When I set KRKTE to 0.06283 I get idle ~0% but my WOT requires additional ~25% of fuel. I suspect that 0.06283 is too low for 380cc injectors and my original KRKTE was OK, but not enough air entered engine at idle (maybe TB wasn't open enough). Need some help here... Title: Re: Fueling issues Post by: nyet on March 06, 2013, 10:17:57 AM looks like a hardware problem, not a tuning issue
Title: Re: Fueling issues Post by: masterj on March 06, 2013, 10:34:57 AM looks like a hardware problem, not a tuning issue I suspect hardware issue too, need to find it, that's why I have created this thread :) Title: Re: Fueling issues Post by: littco on March 06, 2013, 02:08:45 PM I suspect hardware issue too, need to find it, that's why I have created this thread :) Have you checked the 1 way value in the brake booster pipe? Maybe when you're pumping the brake you're pumping air into the manifold? Title: Re: Fueling issues Post by: NOTORIOUS VR on March 20, 2013, 09:46:00 PM New symptoms... In idle if I pump up my brake pedal I get lambda correction +26% (I had to set my KRKTE to 0,06283 to prevent constant -26% correction at idle). Then it goes back again to normal if I stop pumping pedal. If you constantly pump the brake pedal you are essentially creating a vacuum leak... but that is still a lot of correction |