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Thread: Hard cold start after modification.

  1. #1

    Default Hard cold start after modification.

    I recently finished my Cross Ram upgrade on my 383. Before I did this, I had a single throttle body with everything working great. Startup cold & hot was good, along with driving in all areas. Once I upgraded to new V4 I was unable to transfer my latest tune. I did enter all I could, but a total Learn is going to have to go through like I just installed it. One thing I have noticed is since I now have two throttle bodies, I have a long crank time, which often requires throttle input before it does start. Similar to a Learn crank. What areas should I look into adjusting to rectify this, since it seems to be based on the second TB. Hot startup is fine.

  2. #2
    Join Date
    Dec 2009
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    Connecticut
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    Quote Originally Posted by tumper93 View Post
    I did enter all I could, but a total Learn is going to have to go through like I just installed it.
    You can copy & paste (left click & drag) the entire Learn Table, and transfer it to your new Global File as well.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

  3. #3

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    I was able to do that on a previous save I had done, but it wasn't the completed one. I cannot open the file for some reason, even though you can see files saved for fuel & timing and such, but comes up as invalid. The relearn is something that will take time I guess, but will happen. Everything induction wise is now different to say the least. Still have a hard cold start with the two throttle bodies, now that I figured was a setting be it Fuel Prime % or Cranking Fuel.

  4. #4
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    Quote Originally Posted by tumper93 View Post
    One thing I have noticed is since I now have two throttle bodies, I have a long crank time, which often requires throttle input before it does start.
    Sounds like not enough air.

  5. #5
    Join Date
    Dec 2009
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    Yeah, I'd check the throttle blade opening/IAC Position relationship: http://forums.holley.com/showthread....ents-Read-This (Initial Checks & Adjustments - Read Step #3)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

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