idle issue v6 sti with link g4

[Pappu1]

when warm the car idles fine but when cold starts it hardly idles and keeps turning off

need to keep pressing accelerator to keep alive

have tried adjusting the throttle body but with varying results

seems to run semi ok with the idle solenoid unplugged

are there specific fields to check in the G4 tune for idle (just to rule out any tune issues )

have a feeling it could be the solenoid perhaps...

[boon]

Check the warmup enrichment? Could be overfueling.

[Pappu1]

 boon said:

Check the warmup enrichment? Could be overfueling.

thanks

do u know what it should be by any chance...?

[Guest]

Load on the idle maps off pclink v5-6 map. Gary capper said he didnt really get a chance to tune mine and it runs mint on start up.

[Pappu1]

Ok will try tht as well

[Pappu1]

ok so got cold idle sorted (changed the enrichment values and the idle solenoid % openings a bit)

and adjusted the throttle return a bit to have a stable idle

but issue now is

once car is warm and after a bit of bosting when come to stop at the lights the idle goes up to 2000rpm and refuses to come down

blipping the throttle makes no difference

only restarting the engine gets it settling down to 1000 again

what to do next?

[Stoffa]

Set your idle lower and adjust you warm up enrichment insted

[Pappu1]

 Stoffa said:

Set your idle lower and adjust you warm up enrichment insted

u mean the target idle values to be lower in the warm coolant range yea/

its 800atm

warm up enrichment

hmm will look at that

lol the G4 is sooo different to the stock ecu lol (i prefer the romraider look of things somehow)

[Pappu1]

 Stoffa said:

Set your idle lower and adjust you warm up enrichment insted

what are ur tables like?

i will try and post the values off mine once i grab the lappy from the car and can compare..

does anything else affect the warm idle on the G4?

[Guest]

I cant post mine or check them against stock pclink map but will do tonight if I remember. Sure Gary said he didnt touch them though but mightve tweaked the master.

[Pappu1]

 evowrx said:

I cant post mine or check them against stock pclink map but will do tonight if I remember. Sure Gary said he didnt touch them though but mightve tweaked the master.

master??

[Stoffa]

Im running a v7 throttle body so my settings are no help.

Get it idling how you want it when its warm.

Then use the warm up enrichment to make it run richer when cold which should make it idle higher without changing the idle settings

[Pappu1]

 Stoffa said:

Im running a v7 throttle body so my settings are no help.

Get it idling how you want it when its warm.

Then use the warm up enrichment to make it run richer when cold which should make it idle higher without changing the idle settings

i will try hehe sounds good tho

[Pappu1]

issue sorted

changed to open loop idle controll

setup idle table and clamp values for cold and hot

tweaked post start enrichment and the main fuel table to stabilize idle

thanks for all the assistance