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Type: Posts; User: chris989

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  1. Replies
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    The defective TPS came on my SPR throttle body. ...

    The defective TPS came on my SPR throttle body. Maybe it was used/reconditioned,, it was cleaned to appear new. The injectors on the SPR performance TBI failed in one year also.

    The TPS that...
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    Possibly solved, Just in case someone reads...

    Possibly solved,

    Just in case someone reads this in the future i may have found the culprit. I came home the other day with the high idle, before anything else I grabbed the laptop and data...
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    Hello all, The issue is back today and more...

    Hello all,
    The issue is back today and more consistent. When it idles high i don not have Idle/cool flag
    17577

    when it idles normal I have the Idle/cool flag.

    17579


    Any idea what this...
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    Jay, Have you been able in the past to get the...

    Jay,

    Have you been able in the past to get the data/program to work with a PC laptop? Maybe use/borrow a laptop and confirm the configurations are correct and then repeat the set up with the...
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    Are you trying to data log in tunerpro or make...

    Are you trying to data log in tunerpro or make make changed to burn a chip? I data log with winaldl.
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    Jay, If you want to PM me you phone number I can...

    Jay,
    If you want to PM me you phone number I can walk you through it.

    Chris
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    I dislike unsolved threads so i wanted to post, ...

    I dislike unsolved threads so i wanted to post, It has been a month and the truck has been running perfect and not one instance of high idle. I guess i will leave as is for now.

    If I ever...
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    I have the $4F mask. At the time i was not...

    I have the $4F mask. At the time i was not confident about installing and possibly repinning a different ECU. If this continues i might try going with a different unit.

    I have a CJ build i...
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    I just replaced the park/neutral switch again...

    I just replaced the park/neutral switch again because i had no reverse lights. It wasn't that old. It has always been hooked up.

    The truck is an 89 and came with the 400 turbo. It has the...
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    I bought a TBI from this place when I rebuilt the...

    I bought a TBI from this place when I rebuilt the motor/driveline ~5 years ago.

    https://www.sprperformance.com/

    The injectors that came with it failed after a year. The pedal always feels...
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    Rick, Thanks for the reply, Are you thinking if...

    Rick,
    Thanks for the reply, Are you thinking if it had no connection/fault/short it might default to the -8C setting and through a ton of IAC?

    When data logging i have never seen the temp...
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    Random High IAC counts and idle

    Hello All,

    everything On my build has been running nice but I still get a random highh IAC count can can not determine why.

    1989 v2500 burb, 5.7 TBI.

    The truck will idle fine @~650 RPM with...
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    Mecanicus, You are saying you dislike the...

    Mecanicus,

    You are saying you dislike the computer controlling your timing?

    I will read Eaglemark's write up. thanks for the link.

    Chris
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    modifying a non GM distributor for TBI

    Hello all,

    Not sure if this is the right forum so please move if needed.

    I have an AMC 360 in a CJ7, I have been considering converting to EFI but most aftermarket systems worry me with...
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    Dave, I am using the bin and $4f XDF file from...

    Dave,

    I am using the bin and $4f XDF file from the link you referenced.

    I just opened tunerpro in the office computer and it works perfect.
    Yesterday I downloaded TP to a new laptop in the...
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    1228747 akwa and $4f

    Hello all,

    I do not do a lot of tuning and Tunerpro is my kryptonite. Seams like every time i use i have issues.

    Anyway, Truck hasn't been running right so i pulled the ECM. Was going...
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    I am no expert but 160/146 is just the max...

    I am no expert but 160/146 is just the max retract for cold start/reset. I just looked at a bin for $42 and it is 145.
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    I have since re enabled the IAC and set MIN AIR...

    I have since re enabled the IAC and set MIN AIR to about 20 counts. I'm seeing maxed out IAC values on a cold start now, 160 steps is max I think??? Not sure if this is normal, anyone know??[/QUOTE]...
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    interesting observation today, I am trying to...

    interesting observation today,

    I am trying to just use open loop for now, Raising the temp for closed loop to stop it from going closed.

    Even with all IAC step removed from the available...
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    Got under the truck tonight and realized i have...

    Got under the truck tonight and realized i have no wire at the trans for VSS. My year has the green box under the dash. All original, so it is getting the VSS from the speedo. I have been...
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    BINGO,,,, I just went back and looked at the...

    BINGO,,,, I just went back and looked at the raw data and the raw MPH is zero. It is interesting what you said about turning off and restarting. I notice that it will be high and then i turn...
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    I am trying to disable the open loop idle or have...

    I am trying to disable the open loop idle or have it go closed loop earlier. Today it is back to high idle. I am sure it has something to do with the steps added in OL idle. The truck is in CL...
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    Hello again, I have been fooling with Tuner...

    Hello again,

    I have been fooling with Tuner Pro and loggin some data. Nothing in my data shows a MAP or TPS issue and the truck is running smooth. I have concluded closed loop for AFR is not...
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    Don, You are right, My guess is a faulty wire...

    Don,
    You are right, My guess is a faulty wire of sensor. everything is new under the hood but I have had plenty of defects out of the box. The next time it is idling right, I need to log and...
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    The cam is 207/213 at .050. I have 18" of vac. ...

    The cam is 207/213 at .050. I have 18" of vac. It idles smooth at any desired RPM all day long with the IAC unplugged. 40% of the time it will idle right even with the IAC active.
    ...
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