RPM not stable when ideal

[Yiloong]

Dear All Honda Sifu... need ur help here.

Car Problem: My car rpm become not stable when ideal.

Happen when: after I swap my stock b16a engine intake manifold to ITR intake manifold.

symptom: Sometimes the RPM shoot to 1.5K n 2K. Sometimes the ideal RPM is very stable (only 800).

Please raise out ur commet and idea to solve this problem. Thanks.

 

[c00lric]

Hi bro,

Could b the TB that causing da prob. U may wan 2 ask ur mech 2 check it out.

 

[soulfly]

ideal or idle?

i think u mean idle

 

[Yiloong]

is idle...

 

[KAY 3333]

may be the water way valve down the thro body spoile liao

 

[darkemperor]

using piggyback or stock comp.box? might be the comp.box pening....only guessing.....

 

[Yiloong]

using stock ek4 ecu only.

 

[apexivafc04]

Did u change the throttle body to ITR also? If so, there is a Throttle body sensor(TPS) that need to change setting. Try to adjust it and see what happen.

 

[Daniel1688]

idling valve maybe?

 

[Yiloong]

the throttle body also ITR. may i know how to tune the sensor??

 

[KAY 3333]

is the water pass valve under thro body func a not?? if no func sure it will became like tht

 

[Yiloong]

is the water pass valve under thro body func a not?? if no func sure it will became like tht

hehe.. i not yet check the valve.. how to verify the valve huh??

 

[KAY 3333]

jus take out the thro body thn open the bottom of the thro body and play the valve see whether is it JAM a not!!!better ask mechanic do it

 

[Yiloong]

ok.. thanks for ur advise.. how is ur LSD gear box?? got it?? I am planing to sell my 4.4 LSD gear box when i find the 4.785 LSD gear box...

 

[KAY 3333]

havent found yet wht price u gonna give me pm me the price i also need time to sell of my ori gb

 

[apexivafc04]

the throttle body also ITR. may i know how to tune the sensor??

The sensor sit beside the tro. body and it is black one. U can loose the 2 nut and adjust it left or right. But the better way is to ask ur mechanic to adjust for u.

Did ur rpm become not stable after WOT?

 

[Yiloong]

The sensor sit beside the tro. body and it is black one. U can loose the 2 nut and adjust it left or right. But the better way is to ask ur mechanic to adjust for u.

Did ur rpm become not stable after WOT?

WOT stand for what??

 

[VICIC]

I have the same problem also. But my case is the opposition with urs, the problem started after i changed to B16B ECU... had serviced the TB & replaced with new IAC, but still the same till now. Dunno what else can be done...

 

[KAY 3333]

why dun u change bawa to stock ecu??

 

[VICIC]

using this setup for more than a year already. It's like intermittent, especially during day time, but it's not that serious furthermore already get use to it...
Coz i am using CTR cams, if use back the stock ECU which fuel cut at around 8000, no syiok...