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Issues with injector scaling
Hey guys, recently switched to e85, along with a ton of other mods...anyway, got fic 1650 high z and they run stupid rich (-25 stft) until I have them scaled around 1250-1270. This really shouldnt be right, any reason why it would be doing this? It’s on a SD system so i really doubt a boost leak would be the cause |
The FIC 1650 high-Z can be difficult to tune due at idle due to the non-linear characteristics of this design. Here are the settings that worked for me on E85:
E85 Scaling: https://cimg1.ibsrv.net/gimg/www.evo...675abeebd2.png Latencies: https://cimg3.ibsrv.net/gimg/www.evo...dae70ff419.png Minimum pulse width: https://cimg9.ibsrv.net/gimg/www.evo...6f50af70ae.png Low pulse width correction: https://cimg1.ibsrv.net/gimg/www.evo...87555a7ad0.png |
Originally Posted by jmrussell89
(Post 11821961)
Hey guys, recently switched to e85, along with a ton of other mods...anyway, got fic 1650 high z and they run stupid rich (-25 stft) until I have them scaled around 1250-1270. This really shouldnt be right, any reason why it would be doing this? It’s on a SD system so i really doubt a boost leak would be the cause there you go, big thanks is to cdrinkh2o for all that great info! |
Originally Posted by 2winscroll
(Post 11824148)
why wouldnt that be right? Your scaling is for E85... |
Check your fuel pressure? |
Pump gas
3.552 2.736 1.752 1.272 0.984 0.792 0.576 scale 1462 minimum ipw .784 for e85 id prob drop my scale to 1100 to 1250 range |
Hey guys, turns out it was a leak...and at the most critical piece...the MAP sensor. After correcting several small leaks (egr gasket, TB gasket, and biss screw) I found, it finally revealed itself. Reseated it and it was fine. Idles fine, and afr is stable...albeit I still feel having to scale the injectors so high isn't quite correct compared to others. However, I'll just take it at this point. Thanks for your inputs.
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Well, another update today...idles fine...went to drive and it just sputtered and wanted to stall...so yeah. Back to the drawing board haha.
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Originally Posted by jmrussell89
(Post 11828092)
Well, another update today...idles fine...went to drive and it just sputtered and wanted to stall...so yeah. Back to the drawing board haha.
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Originally Posted by BLACKzj52
(Post 11847929)
Just wanted to bump this and see if you were able to remedy this problem.
The reason it sputtered and fell on its face? The car was in open loop for some testing purposes and I forgot to set it back to closed. Therefor it went to read the fuel tables (which I had not adjusted for cruise) and went crazy. |
Originally Posted by jmrussell89
(Post 11848047)
I actually did, at least for what was listed here. The reason it sputtered and fell on its face? The car was in open loop for some testing purposes and I forgot to set it back to closed. Therefor it went to read the fuel tables (which I had not adjusted for cruise) and went crazy. |
Hi. I would like to ask how the 91 E85 handover program was achieved.
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Sorry to bring thread but I can’t seem to adjust my latency below 1.200 any ideas why that would be?
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