7747 on a Ford 400 - still not getting a backfire issue sorted

[Dr_Grip]

Finally getting there! After lots of dabbling with the AE settings, she's running mostly great, with an AFR under AE between 12:1 and 13:1 - but the WB o2 tells me that starting from a standstill and accelerating at low rpm, I hit 10:1. I can feel her hesitating a bit, even.

As I am a bit lost as to how MAP AE and TPS AE work together, I can't really tune that behavior out. A log and the bin's attached, and I am glad if someone can help me out!

Gotta bump this. Still at a loss. Any ideas?

[sturgillbd]

Too much AE will cause a bog/hesitation also. There are several threads here on the forum with info on tuning AE.

http://www.gearhead-efi.com/Fuel-Inj...1647-Tuning-0D

Here is one from another forum that describes tps and map ae

http://www.ifsja.org/forums/vb/showthread.php?t=149344

HTH
Brian

[Dr_Grip]

Thank you for the input! So basically, I have to check TPS AE in the affected TPS % range. Will do and report back (my girl told me to take the next weekend off from wrenching, so it'll take some time, but I will report back).

[Dr_Grip]

Reporting back - getting there, even if tuning the TPS AE is a real PITA and involves more trial and error than I generally like. Thank you all for your input!