Car Fixed
03-07-2004, 05:50 AM
#11
Senior Member
Join Date: Sep 2002
Location: Columbia,MO
Posts: 656
Mine did that for the first week or so.....it slowly kept getting better as the PFC learned the car more and more. But when I first started it, I let it idle for about 30 minutes with the AC off.....then 30 minutes with the AC on.....that helped it learn the load of the fans coming on and off better. Then I just drove it.....and it just kept getting better. You will pull up to a stoplight and it would surge up and down like that for about 10-15 seconds, then calm down and be good to go.....then the next time you came to a stop, it would do it again....over and over and over....till one day, it didn't do it any more. Congrats on getting the car running. Can't wait to see it and hear it.
Good Luck.
Good Luck.
03-07-2004, 09:43 AM
#12
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Thread Starter
Join Date: Feb 2002
Location: Frederick MD
Posts: 6,331
Originally Posted by Racer X' date='Mar 7 2004, 03:40 AM
At least let the motor break in before you paint the streets black.So what was that problem you were having?
I'm guessing it was either the injectors I replaced or the extra battery ground I added.. Who knows.. WHO CARES!!! It runs!
03-07-2004, 09:44 AM
#13
Senior Member
Thread Starter
Join Date: Feb 2002
Location: Frederick MD
Posts: 6,331
Originally Posted by lane_change' date='Mar 7 2004, 05:50 AM
Mine did that for the first week or so.....it slowly kept getting better as the PFC learned the car more and more. But when I first started it, I let it idle for about 30 minutes with the AC off.....then 30 minutes with the AC on.....that helped it learn the load of the fans coming on and off better. Then I just drove it.....and it just kept getting better. You will pull up to a stoplight and it would surge up and down like that for about 10-15 seconds, then calm down and be good to go.....then the next time you came to a stop, it would do it again....over and over and over....till one day, it didn't do it any more. Congrats on getting the car running. Can't wait to see it and hear it.
Good Luck.
Good Luck.
03-07-2004, 09:45 AM
#14
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Thread Starter
Join Date: Feb 2002
Location: Frederick MD
Posts: 6,331
Originally Posted by boostdfd3s' date='Mar 7 2004, 01:04 AM
I got a new tape and a fresh battery whenever u wanna make a movie! 
03-07-2004, 04:51 PM
#16
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Join Date: Oct 2002
Location: Merrick NY / St.John's Uni Jamacia, NY
Posts: 1,073
that happened to me at first with my PFC
i know there are a few main settings u gotta change when u go single. are u just installing the pfc now or did u already have it with twins?
side note my car stalled from idle a lot the first day with the new ecu but by the 4th or 5th startup it was idling fine
i know there are a few main settings u gotta change when u go single. are u just installing the pfc now or did u already have it with twins?
side note my car stalled from idle a lot the first day with the new ecu but by the 4th or 5th startup it was idling fine
03-07-2004, 05:47 PM
#18
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Thread Starter
Join Date: Feb 2002
Location: Frederick MD
Posts: 6,331
Originally Posted by MazdaMike' date='Mar 7 2004, 04:51 PM
that happened to me at first with my PFC
i know there are a few main settings u gotta change when u go single. are u just installing the pfc now or did u already have it with twins?
side note my car stalled from idle a lot the first day with the new ecu but by the 4th or 5th startup it was idling fine
i know there are a few main settings u gotta change when u go single. are u just installing the pfc now or did u already have it with twins?
side note my car stalled from idle a lot the first day with the new ecu but by the 4th or 5th startup it was idling fine
I was told that I can start the car and let it lear idle without changing anything..
I have not adjusted the idle screws yet, but will.. The car is so goddamn loud I had to quit for the day with a headache..
03-07-2004, 07:28 PM
#19
Senior Member
Join Date: Dec 2002
Location: Long Island, NY
Posts: 105
Member Boostn7 can help you with this. The reason your PFC is doing this is when you have a ported motor, the fuel cells fall under a different spot on the map at idle(remember ported motors make less vaccum at idle, also at the same time fuel atomization lesses with a bigger port due to less airflow velocity at low rpms with a ported motor) that will cause the PFC to hunt because the fuel cells in that range need to be adjusted, the only way to correct this is by tuning the idle properly with a Datalogit.