BLM- Long term fuel trim?

[rudder2fly]

What kind of cable do you have? The 10k switch is on so your running in ALDL mode, which increases timing, raises idle and who knows what else. Your knock counts are going crazy driving with all that extra spark.

Have to turn that switch off and do another log.

TPS% at .90 is way to high, have to loosen it and twist it to get voltage back down. GM says .54 is perfect, I say anything under .70 does not effect it.

Not sure why a lower voltage makes BLM better/lower? Actually less voltage would be less fuel from pump and should make it worse!

WOnder if being in ALDL mode, added spark and all the knock counts is causing a misfire and giving the O2 sensor false readings? Have you ever set timing on this to 0 with bypass dis-connected as well?

I have the Moates Extreme ALDL cable set at 10k. The TPS sensor is nonadjustable! Timing is set at 2 degrees BTDC with the computer not in the loop. The engine will surge with thoughts of running right then drop back like it is dropping cyclinders when charging. Not charging runs pretty good. G.S.

[EagleMark]

Don't run 10k and get another log with charging system!

You can file the holes in TPS for more room but should not need it unless you have been adjusting the minimum air screw. You can also bend the tang on TBI behind sensor as a second choice.

[ony]

at lower voltages the paules with is higher 132 to 137 blms higher voltage paulse with is lower an makes blms go up to 150 or more.

[EagleMark]

Dam your good ony!

[rudder2fly]

[IMG] truck5.xdl[/IMG][IMG] truck6.xdl[/IMG]

[EagleMark]

You didn't't get those files attached right, can't open them.

At bottom of reply box you will see go advanced, then under that is an attachment manager which works better for files.

[rudder2fly]

truck5.xdltruck6.xdlLog- truck5 Is running at 14v with all the adjustment I could get on the TPS. About halfway I went to 12v. Log- truck6 is with the old TPS. I could not tell that the TPS had any effect on the problem other than high RPMs on idle.