RX7Club.com - Mazda RX7 Forum

RX7Club.com - Mazda RX7 Forum (https://www.rx7club.com/)
-   3rd Generation Specific (1993-2002) (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/)
-   -   idle hunt pfc (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/idle-hunt-pfc-967750/)

shawnm565 08-30-11 08:28 PM

idle hunt pfc
 
So I installed my PFC and I just have the base map, when I stop at a stop sign or when I first turn on the car it will idle hunt for like 30 seconds then it idles nice at 800-900 rpms... is there something I need to do to fix that or will it be fixed with getting it tuned on saturday?

arghx 08-30-11 08:46 PM

There is something you can do to fix it but that doesn't mean wherever you take it is going to put the time in to get the idle right. https://www.rx7club.com/3rd-generation-specific-1993-2002-16/how-make-your-untuned-pfc-basemap-safer-idle-better-no-datalogit-needed-841706/ #1, 23, 27, 28

shawnm565 08-30-11 09:09 PM


Originally Posted by arghx (Post 10767867)
There is something you can do to fix it but that doesn't mean wherever you take it is going to put the time in to get the idle right. https://www.rx7club.com/showthread.php?t=841706 #1, 23, 27, 28

im pretty confident they will set me up right.

radkins 08-31-11 01:30 AM


Originally Posted by shawnm565 (Post 10767842)
So I installed my PFC and I just have the base map, when I stop at a stop sign or when I first turn on the car it will idle hunt for like 30 seconds then it idles nice at 800-900 rpms... is there something I need to do to fix that or will it be fixed with getting it tuned on saturday?

Chances are it is getting too much air.

swilson@assetworks.com 08-31-11 10:10 AM

As is detailed in the post by arghx
First thing to do is adjust the idle air screw on the throttle body.
Mine worked fine after I did this with no trip to a tuner requried

shawnm565 08-31-11 10:25 AM


Originally Posted by swilson@assetworks.com (Post 10768471)
As is detailed in the post by arghx
First thing to do is adjust the idle air screw on the throttle body.
Mine worked fine after I did this with no trip to a tuner requried

ok I will do that today when I get home! is that the screw under the elbo?

shawnm565 08-31-11 10:26 AM

nvm I found my awnser on the post

shawnm565 08-31-11 07:48 PM

idk I cant seem to fix the idle hunt... it only happens when you increase the fuel and then let off back to normal idle then it hunts for 20-30 seconds and then stops idle hunting

arghx 08-31-11 10:11 PM

post a video of the problem

shawnm565 09-01-11 12:28 PM

http://i1216.photobucket.com/albums/..._VIDEO0033.jpg


we just got back from chipotle so dont mind the music!

arghx 09-01-11 02:03 PM

most likely fuel cut settings, throttlebody air adjusting screw, or dashpot. it would be easier to diagnose with data logs.

just go through the procedures I've already outlined. There are four posts in that thread and another dedicated thread that I link to in one of those posts.

shawnm565 09-01-11 02:06 PM


Originally Posted by arghx (Post 10770269)
most likely fuel cut settings, throttlebody air adjusting screw, or dashpot. it would be easier to diagnose with data logs.

just go through the procedures I've already outlined. There are four posts in that thread and another dedicated thread that I link to in one of those posts.

I adjusted the air screw.. Didnt change anything.

arghx 09-01-11 02:07 PM


Originally Posted by shawnm565 (Post 10770271)
I adjusted the air screw.. Didnt change anything.

there are more things to try. keep reading. As I've stated in the past, it usually isn't a problem you can quickly and easily fix. It could take 10 minutes or 10 hours.

shawnm565 09-01-11 02:17 PM


Originally Posted by arghx (Post 10770269)
most likely fuel cut settings, throttlebody air adjusting screw, or dashpot. it would be easier to diagnose with data logs.

just go through the procedures I've already outlined. There are four posts in that thread and another dedicated thread that I link to in one of those posts.

iv deleted my thermowax & my fast idle has a a zip tie holding it back, would I need to adjust the zip tie

arghx 09-01-11 02:18 PM

no if you have zip tie on there securely it won't matter

shawnm565 09-01-11 03:35 PM


Originally Posted by arghx (Post 10770295)
no if you have zip tie on there securely it won't matter

I also deleted my dashpot

shawnm565 09-01-11 04:03 PM

I think I might have a solution to my problem..... I have my ISC still hooked up could it be allowing to much air to pass by? because I turned my air idle completely closed and the cars idle didnt change at all... nothing changed

shawnm565 09-01-11 04:27 PM

Nope that wasnt it... now I turned on my car, it didnt idle hunt, I drove about 1 mile or less and then it starts hunting, it didnt start to hunt until I pulled back in... it almost seems heat related?


All times are GMT -5. The time now is 06:17 PM.


© 2024 MH Sub I, LLC dba Internet Brands