*Idle Problem*Do you encounter this?

[NeniNeniBoBo]

Sorry for late update about my case. The problem now is finally solved.

1st, they check the TPS, due to me MFD show 2-3% when idle, he adjust the TPS to make it 0% but fail, then he swap to new TPS and check the fully close/open throttle voltage, MFD show 0% after new TPS installed.

We tot problem solve, but its turn worst. Car can't even start UNTIL he adjust the AAC idle screw. Then the car go through a ECU tuning(because of new 700cc injector, nismo fuel pump, fuel filter is installed). The car now is so smooth and so far never stalling once, rev indicator never fluctuate.

At here I have a question, although my car now is very smooth and dint stall when idle. But I encounter 1 minor problem is my car difficult to start ONLY when after the car is warm and off for some period like 20-30 minutes. I need to give some gas then the problem gone.

However, The car is easy to start during:
- cold start and
- after car is warm and off for very short period like refill petrol(5-7mins)

Anyone have this problem? This problem dint effect the car when cruising(very smooth now), just difficult to start the engine. Anyone can give some comment?

My personal silly thinking: will the 700cc injector still flow out little amount of fuel when engine off and cause the car difficult to start?

 

[kaminari]

Glad to hear that! ...Anyway what is your spark plug heat range?

 

[NeniNeniBoBo]

Glad to hear that! ...Anyway what is your spark plug heat range?

Thanks Tom, lucky last time I bought new TPS from u~ Erm... I'm using this spark plug from HKS, is a M series iridium(50003-M40i), I saw this reading "8番", is it the heat range?

 

[lemon_demon]

haha.. mine have to step on the pedal each time i start, no matter warm or cold! could live with it n i accept it as spices of life.. hope will be solved after install power fc

 

[kaminari]

Yup it`s heat range....8 consider cold, try use lower heat range. OEM is 6, but 7 should be fine for
boost up car.

 

[NeniNeniBoBo]

haha.. mine have to step on the pedal each time i start, no matter warm or cold! could live with it n i accept it as spices of life.. hope will be solved after install power fc[/
I don't like my car like this.... Will change my spark plug to '6' or '7' heat range and see how ^_^

---------- Post added at 03:16 PM ---------- 6 hour anti-bump limit - Previous post was at 03:12 PM ----------

Yup it`s heat range....8 consider cold, try use lower heat range. OEM is 6, but 7 should be fine for
boost up car.

Thank you so much Tom~ will swap to '7' and see how~ hehehe:-)

 

[farizio]

even nismo recommends 7 for the spark plugs (which is included in the 'Sports Resetting' package)

 

[owtaman]

I have idling issue on my ECR33-S2, RB25DET, it fluctuate but does not stall.

Recently I replaced no.2 and no.4 ignition coils and I see the biggest improvement since all the other things I have done to fix this idling issue.

 

[SUJAAR AR RACING]

MR NENI .. PLEASE TELL ME WHERE DID U TUNING YOUR CAR ....change your tps for idling problem..thz