Help with tuning

[darky82]

In the log speeds are out by about 15km, I had the problem of the gears changing early before the correction kit, my main concern is second gear that only really pulls to around 4800 before changing into third and also changes back into first a little early when pulling up not so bad after stall con but noticeable. I had something adjusted in pwr mode, changes a little better but hangs in gear even if you back off, I posted a log earlier not the best but will do another.

[darky82]

Ok had time today to do another log there is a few wot shifts, may have been off with numbers.

Wideband reading are a bit lean on idle is this a major problem atm, also cold start is very lean?

today.xdl

(159.08 KiB) Downloaded 265 times

[darky82]

Ok managed to do a cold start log today, AFR are very lean. Any idea what i should try and adjust. had to readjust idle screw towards the end of log, it was set about 3 days ago then went back to 0 steps?

cold start.xdl

(509.02 KiB) Downloaded 268 times

[VL400]

I dont think the IAC is even working - sits at 196 steps and then drops to 0 at around the 5 minute mark with no significant change to RPM.

Does the AFR displayed in the TP log match what the wideband display (or PC software) says? If you narrowband sensor is up to temp and working it says richer than stoich towards the end but wideband says leaner.

[darky82]

I got it to idle on 20-21 steps at end of log, I don't get what your saying about the afr, I only see my wideband and target afr?
Should I also recalibrate my wideband.

[Holden202T]

VL400 is refering to using the software that comes with your wideband to see if the readings in it match whats happening in the delco logs.

also this software is normally how to set the analog input wires settings ie. 0v = 7.35 AFR and 5v = 20.34 AFR etc.

[darky82]

I can't use it as it only came with a pin connector.

Can I cut this plug and use a old USB cord?

[VL400]

Huh If it hasnt got USB connector you cant just add one to a wire.

What wideband?

[darky82]

I have the MTX-L kit. It's only got a 4 pin connector for its own logging software
Trying to set it up on my mums old laptop but won't find it.

[VL400]

Thats an easy one then, does the MTX-L gauge read the same as what is displayed in TunerPro?