I have a b18b1 that have constant irratic idling during cold and warm engine operating temperature. I have replaced it with 3 different iacv, 2 map sensors, checked the vacuums, drained the coolant a couple times to make sure there is no air pocket or bubbles, replaced the throttle body and gasket. Am i missing something here that i forgot to do? I am in need of help badly, much thanks

 

theres no fast idle valve on the throttle body, fyi

 

bump would like to hear some input on this

 

What type of irratic idling? 1500 - 2000 or a stuck type idle, like a 2step?

Is there a vacuum leak or something? Did you replace the intake manifold too? Also is the manifold flange straight or warped? i would check those. Also try another ecu.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Luserkid &raquo;</TD></TR><TR><TD CLASS="quote">What type of irratic idling? 1500 - 2000 or a stuck type idle, like a 2step?

Is there a vacuum leak or something? Did you replace the intake manifold too? Also is the manifold flange straight or warped? i would check those. Also try another ecu. </TD></TR></TABLE>

irratic idling anywhere from 0-3000 when cold and 1000-1500 when its warm. replaced teh vacuum hoses, only got 2, from the fuel regulator to the im and the big fat pvc hose to the im from the brake booster. ECU, i haven't tried yet, but will

 

try resetting your ecu.....and spary some carb cleaner around your intake mani and throttle body....if any of these are warped the carb cleaner will get sucked inside the motor and cause a rich condition making the motor bog....then you will know for sure

 

did you by any chance take off the intake manifold? cause if you did the gasket is not re-usable... You could have a leak

 

Did you check your o2 sensor?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chillis &raquo;</TD></TR><TR><TD CLASS="quote">did you by any chance take off the intake manifold? cause if you did the gasket is not re-usable... You could have a leak</TD></TR></TABLE>

intake manifold was never pulled off


o2 sensor, no check engine light, so i assume it is str8

resetted the ecu a lot, probably will pick up carb cleaner today

 

Just because the CEL isnt on doesnt mean its fouled. I would check it out.

 

do you have a chipped ecu?

 

have you checked the injectors/ fuel filter

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ultimatehonda &raquo;</TD></TR><TR><TD CLASS="quote">Just because the CEL isnt on doesnt mean its fouled. I would check it out.</TD></TR></TABLE>

i am probably going to replace it with another one i have laying around

injectors and fuel rail, i am using stock ones

yea, i have a chipped ecu, stock uberdata ls map


Modified by oxSLEEPERxo at 11:11 PM 9/6/2006

 

take it to a local shop and have them hook it up to a smoke machine if u have a vaccuum leak ull definately find it that way and it doesnt cost much

 

hmm, i will try call aroudn to see if any shop got that

 

i bet it's an issue with the chip

 

check the pcv valve cause mine idled the same way and the pcv wasnt plugged in all the way...just a suggestion

 

Check the FITV if you have one... I just had the same problem and got rid of it when I bypassed it with a the new manifold.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bense &raquo;</TD></TR><TR><TD CLASS="quote">i bet it's an issue with the chip</TD></TR></TABLE>

yea, it might be, going try a couple different obd1 ls ecu tomorrow

fitv, got none

pcv valve is in good, thanks for the suggestion

any help or comments are greatly appreciated

 

ok, i just tried a obd1 pr4 ecu, so its not the ecu, i am just going pull off the intake manifold and replace that gasket

 

replaced the intake manifold gasket, irratic idling is still there. sprayed carb cleaner at all gasket and vacuum lines, nothing. any more suggestions?

 

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondachris1994 &raquo;</TD></TR><TR><TD CLASS="quote">take it to a local shop and have them hook it up to a smoke machine if u have a vaccuum leak ull definately find it that way and it doesnt cost much</TD></TR></TABLE>did u try that?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondachris1994 &raquo;</TD></TR><TR><TD CLASS="quote">check the pcv valve cause mine idled the same way and the pcv wasnt plugged in all the way...just a suggestion</TD></TR></TABLE>or did u check this?