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Just bought HPT and would like some suggestions to help me fix my idle

acidcrashdburnd

acidcrashdburnd

New member
I had my car tuned by a "pro" but cant seem to get the idle right I was wondering if I post a screen shot of the settings someone could take a look and point me in the right direction.. As of now I dont plan to change anything other than that and take 1* of timing away, I have a lot of reading and learning ahead of me..
 


Get on the HPT forums aswell if you can.

Posting your file or scan on there is easy, you can get feedack from there aswell.


Whats wrong with your idle though?
 


I also have more than idle issues.

-flat spots
-KR at shift points
-random 4* of KR after 100mph
-lean conditions at cruise (65ish MPH) 17.0+ AFR
-goes lean around 25mph to the point it starves for fuel and stalls I monitor with the AEM UEGO when this happen the gauge just reads - - - no numbers
 
acidcrashdburnd said:
I also have more than idle issues.

-flat spots
-KR at shift points
-random 4* of KR after 100mph
-lean conditions at cruise (65ish MPH) 17.0+ AFR
-goes lean around 25mph to the point it starves for fuel and stalls I monitor with the AEM UEGO when this happen the gauge just reads - - - no numbers
Click to expand...

Post the tune file use something like Google docs or cloud to up load it
 


It just occurred to me that I am running a stock pump with stock wiring. I will hook a gauge up to the car and do a few WOT runs friday night and see what I get; I would also like to tap in to the wiring if i can and monitor voltage for spikes and drops.
Darkhorizon might be right.
 
acidcrashdburnd said:
It just occurred to me that I am running a stock pump with stock wiring. I will hook a gauge up to the car and do a few WOT runs friday night and see what I get; I would also like to tap in to the wiring if i can and monitor voltage for spikes and drops.
Darkhorizon might be right.
Click to expand...
60 pound injectors with no pump upgrade? I assumed you took care of that....don't even bother at least rewire your fuel pump and order a 255lph pump
 
91parkave said:
Why would you not want the proper injector data since the op upgraded?
Click to expand...

the tables unlocked in HPT are not injector offset tables as we understand them. I have experimented with them quite a bit and the effectively do nothing but cause the injectors to do very strange things.
 


I need to do a rewire on mine. I have one in the garage just haven't had anytime to do it. I don't have a problem with leaning out though.
 
Found one problem quickly, you are commanding 11.7 AFR, yet still having the ADD vs RPM table active. So its adding more and more and more fuel as the time goes on. If you are seeing 10 AFR I wouldnt be suprised.
 
tumblr_msctjyTR9e1qeao7mo1_1280.jpg


First thing I adjusted, was adding 50rpms to the AC on field

I am using this http://www.grandprixforums.net/hptuners-programming-dummies-43620.html

But I think its out dated.. I cant find some of the things mentioned.
 
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