Hondata

mods: k20a2, prb kpro, 750cc, jrsc 7psi, i/h/e

When i start the Car in the morning it starts fine after first cranking. When the Car is semi warm like 40-50C oil temp and warm outside it needs cranking a few times till the engine starts or idle is very low 200rpm 2secs and then it idles fine. Is there any solution for this plz?

Try adjusting the cranking fuel trim in parameters.

Cranking fuel +/-10% does not help. reducing injector pulse in 41c-61c range seems to help a bit.

try larger changes to the cranking trim

Reducing actually got worse, i try add some 25% or so. thx

adding +30% didnt helped. only got worse.

Mods: k20a2, PRA k-pro, jrsc 7 psi, 650 cc

I have the same starting problem. The car is almost too easy to start when cold or warm, but difficult to start when semi-warm (after it's been turned off for about 30 minutes or more).

Increasing cranking fuel by 10% makes no difference at all.

Increasing cranking fuel by 30% makes the car even more difficult to start when it's semi-warm.

Reducing injector pulse (ms) for 41C and 61C helps. I started out with 19.53 and 14.65. I have now reduced the values to 14.53 and 9.65. The car doesn't start perfectly, but it starts a bit faster.

Any ideas?

it's not unusual to reduce cranking fuel trim 20-30 % with larger injectors. I run -10% with only 410cc injectors. I can't see any applications where you would add fuel to the cranking trim.

let me guess, rc injectors?

I had the same issue with mine, got rid of them and running bosch, never had a problem...

Yes, I'm running RC injectors.

I still haven't gotten rid of the starting problem when the car is semi-warm.

I might just try bosch injectors instead.