Transient fueling on FLH2

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Transient fueling on FLH2

Unread postby motorhead1991 » Wed Jul 11, 2018 9:14 am

So, I've been chasing this issue for what seems like forever. If I roll into the throttle, AFRs richen up accordingly but if I stab it, it spikes lean (20-22 on the WB). I've checked for boost leaks and the only one I found was the vent port on the IAC. I ordered a Cobra valve to replace it and blocked the Ranger one off for the time being, which helped but didn't cure it.

What am I missing? I can share my transient and injector settings at lunch time if that will help.
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Vehicle Information: 1990 Ford Ranger FLH2 conversion. Ford forged/dished pistons, Total Seal file-fit rings, Clevite rod and main bearings, Clevite cam bearings, IHI turbo, Siemens Deka 60lb/hr injectors, Ford slot MAF in custom 3" housing. Moates Quarterhorse with Binary Editor, using the PAAD6 database.
Vehicle 2 Information: Stock 1990 Ranger. ICM relocation

Re: Transient fueling on FLH2

Unread postby decipha » Wed Jul 11, 2018 12:58 pm

did you dial in inferred load?
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Re: Transient fueling on FLH2

Unread postby motorhead1991 » Thu Jul 12, 2018 9:10 am

The only inferred load table I can find is mislabeled as LWFM, and I haven't touched it. I actually altered the injector settings, which made a significant improvement, but it's not perfect.

(FLH2 doesn't use a function for inferred load that I've found)
motorhead1991
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Posts: 128
Joined: Mon Apr 03, 2017 6:46 pm
Name: Anthony Cox
Vehicle Information: 1990 Ford Ranger FLH2 conversion. Ford forged/dished pistons, Total Seal file-fit rings, Clevite rod and main bearings, Clevite cam bearings, IHI turbo, Siemens Deka 60lb/hr injectors, Ford slot MAF in custom 3" housing. Moates Quarterhorse with Binary Editor, using the PAAD6 database.
Vehicle 2 Information: Stock 1990 Ranger. ICM relocation

Re: Transient fueling on FLH2

Unread postby motorhead1991 » Thu Jul 12, 2018 9:24 am

decipha wrote:did you dial in inferred load?


After reading this thread, I see that they are synonymous. I'll get right on that (probably one of the first things I should tune next time)

http://www.efidynotuning.com/forum/viewtopic.php?f=18&t=2153
motorhead1991
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Posts: 128
Joined: Mon Apr 03, 2017 6:46 pm
Name: Anthony Cox
Vehicle Information: 1990 Ford Ranger FLH2 conversion. Ford forged/dished pistons, Total Seal file-fit rings, Clevite rod and main bearings, Clevite cam bearings, IHI turbo, Siemens Deka 60lb/hr injectors, Ford slot MAF in custom 3" housing. Moates Quarterhorse with Binary Editor, using the PAAD6 database.
Vehicle 2 Information: Stock 1990 Ranger. ICM relocation


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