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Re: Tuning with no speed sensor
Posted: Sat Aug 13, 2011 10:08 am
by VX L67 Getrag
No JCA!
Your going the wrong way!
MAKE SURE THE CAR IS AT OP TEMP, then look at loog & screw the stop screw IN until you have zero to a max of 5 steps!
Then it will limit it fluctuating & be basic but work!
Cheers VX L67 Getrag
Re: Tuning with no speed sensor
Posted: Sat Aug 13, 2011 2:53 pm
by jca
Hi, yep had a bit more of a play i had it at approx 30steps so turned stop screw till we had 0 steps approx 1050rpm in park, but had 5%tps so i drilled out the locateing holes a little so i have 0% tps all seemed pretty good but then has a shit fit after a while if i just unplug the iac it idles perfect with no stumble, its like the iac is trying to adjust the fuel mixtures ? , i'm also starting tom think it may have wiring issues as its been wired in to a vl and dosn't take much to foul the plugs.
Re: Tuning with no speed sensor
Posted: Sat Aug 13, 2011 6:33 pm
by VX L67 Getrag
I'm no expert but sounds like it logs an error with something & tries to re-correct but knows it can't?
Maybe go to doc's solution can we force open loop idle or JAYME? Lol
Do you have an xdl?
Re: Tuning with no speed sensor
Posted: Sat Aug 13, 2011 8:31 pm
by jca
Hi, well i did max out kcltc so it was in open loop all the time while i tuned the ve table, it didn't idle 2 bad i guess the narrow band sensor does stuff all any way? any tricks on how to stop the plugs fouling on cold start i was hopeing to have a table to bump up the timing in relation to coolant temp to help burn the extra fuel.
Re: Tuning with no speed sensor
Posted: Mon Aug 15, 2011 8:12 am
by TTVN
i have found that if u just unplug the iac they will rattle open after a while causing high idle