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-   -   Car running badly after power fc (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/car-running-badly-after-power-fc-1029237/)

Tem120 03-22-13 01:21 PM


Originally Posted by jayscoobs (Post 11413010)
So I went to drive around after idle learn. Wow super heat soaked idling for 30 mins. Was just at 3k and saw knock skyrocket. Scared me a bit.

what was your knock max ?

jayscoobs 03-22-13 01:32 PM

I didnt see a number. The bar almost filled the entire screen. Yeah after idling the car heat soaked in the 50s on the power fc. I monitor intake temps already. I need a oled commander because its hard to see this thing haha.

So far she's running good, but then again the problem didnt rise until the next day. I haven't driven the car since I first did the idle learn.

I have plans to pull the UIM and disable double throttle as well as pull off the ISC and check to see if its in spec since the commander shows nothing about it.

Tem120 03-22-13 01:39 PM


Originally Posted by jayscoobs (Post 11414788)
I didnt see a number. The bar almost filled the entire screen. Yeah after idling the car heat soaked in the 50s on the power fc. I monitor intake temps already. I need a oled commander because its hard to see this thing haha.

So far she's running good, but then again the problem didnt rise until the next day. I haven't driven the car since I first did the idle learn.

I have plans to pull the UIM and disable double throttle as well as pull off the ISC and check to see if its in spec since the commander shows nothing about it.

when you have the PFC in monitor mode , press the up button , and if you are in the 4/2/1 display modes it will give you MAX rating as well as Current , in the 8 display mode it will give you either or .

jayscoobs 03-22-13 01:49 PM

That's for knock right?

Tem120 03-22-13 02:00 PM


Originally Posted by jayscoobs (Post 11414809)
That's for knock right?


Nope everything , speed , knock , water Temp , intake temp , rpm's , boost , injector duty

on the commander it will have the regular real time nuimbers and on the side with a little blakc box with a highest value of the sertain criteria , it will stay there until you shut hte power off , next time go ahead nad give it a try . you will know if your car is over boosting , your highest knock , so on.

jayscoobs 03-22-13 03:51 PM

Will do. So good idea for me to clean the ISC? Or test it.

jayscoobs 03-24-13 08:43 PM

Didnt get to clean ISC yet but problem is still there. No change. Car runs perfect when power fc is first installed. Next time car is started idle surging comes and sticking.

First day idles 850 perfectly. Now it won't ever touch that.

Tem120 03-24-13 09:05 PM


Originally Posted by jayscoobs (Post 11416982)
Didnt get to clean ISC yet but problem is still there. No change. Car runs perfect when power fc is first installed. Next time car is started idle surging comes and sticking.

First day idles 850 perfectly. Now it won't ever touch that.

damn.. you should try asking on the PFC section maybe one of the gurus over there will have a better answer . what are your ICS settings ? check your vacume lines make sure none got disconnected . I've blown a couple off before .

jayscoobs 03-24-13 09:08 PM

I doubt a line is off. They were just replaced with silicone and I'm pulling 17" of vacuum. Won't it be less if a line is off? ISC settings are stock.

jayscoobs 03-24-13 09:53 PM

Looks like its irratic again. Driving home I set the first F/C setting to 1050, rest is untouched. Now it goes to 850 when it wants to. Doesnt do the surging but when coming to a stop it does go to 850 briefly and jumps back up to 1200. Idling is always around 1k and sometimes goes down to 850.

There seems to be no steady symptoms that will help me figure it out.

Tem120 03-24-13 10:06 PM


Originally Posted by jayscoobs (Post 11417014)
I doubt a line is off. They were just replaced with silicone and I'm pulling 17" of vacuum. Won't it be less if a line is off? ISC settings are stock.

not really higher idle means more vacume , I pull 20" when my idle is around 1200

Tem120 03-24-13 10:08 PM


Originally Posted by jayscoobs (Post 11417057)
Looks like its irratic again. Driving home I set the first F/C setting to 1050, rest is untouched. Now it goes to 850 when it wants to. Doesnt do the surging but when coming to a stop it does go to 850 briefly and jumps back up to 1200. Idling is always around 1k and sometimes goes down to 850.

There seems to be no steady symptoms that will help me figure it out.

have you tried to set your idle parameters ? , you should have an options that says IDLE A , B , C , Depends on howmuch electrical load is on the car .

jayscoobs 03-24-13 10:15 PM

Their all at the stock parameters. I believe stock is 750 with no load and I'm not seeing that at all.

Tem120 03-25-13 07:15 AM


Originally Posted by jayscoobs (Post 11417085)
Their all at the stock parameters. I believe stock is 750 with no load and I'm not seeing that at all.

Change the others lower them all , my tach reads higher then the pfc

if your car refuses to idle at those parameters something is letting air in thats not supposed to , weather it be a bad check valve or a loose hose or the ICS itself

Tem120 03-26-13 09:24 AM


Originally Posted by Tem120 (Post 11417289)
Change the others lower them all , my tach reads higher then the pfc

if your car refuses to idle at those parameters something is letting air in thats not supposed to , weather it be a bad check valve or a loose hose or the ICS itself

one warning if you do plan to take off the ICS .. be careful with the valley of doom . between the ICS and the rats nest is a small crevice which has magnet for tools , and nuts , and bolts ..

I still have a socket that fell in there and I was never able ot take it out without removing my rats nest . I figured one of these days it will fall out ..

but nope.. bad decision , when I brake hard or accelerate hard you hear that socket Hah

jayscoobs 03-26-13 10:28 AM

Haha I have yet to drop something down there. I will say that I have dropped a bolt or two on top of my radiator that I finally found after doing some work and removing parts.

Tem120 03-26-13 10:37 AM


Originally Posted by jayscoobs (Post 11418605)
Haha I have yet to drop something down there. I will say that I have dropped a bolt or two on top of my radiator that I finally found after doing some work and removing parts.

the bottom bolt of the ICS is a pain .. that's the cause of all my bolts and sockets falling into the crevice

jayscoobs 03-26-13 05:11 PM

Okay I disconnected Isc. Started the car and no high revving when starting. Stayed at 750. Drove around and idle is mostly at 750 but sometimes 850 and then 1000. No load on car. Idle never above 1000 though.

thewird 03-26-13 07:59 PM

Your problem is probably throttle body setup.

thewird

jayscoobs 03-28-13 04:08 PM

How do I go about fixing that? Everything was perfect with the stock ecu. So I don't know what needs adjusting.


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