Cold start issue

[Bedwards]

When accelerating on cold starts, my car often falls on it's face. The timing will drop to literally 0.5, I get no throttle response and it surges. I'm not sure which spark table I need to adjust. It's gotta be something in Tiny Tuner, as HP Tuners is very limited to spark modifiers.

My car surges bad at idle on cold starts as well. RPM will rise to 2000, then go down to 500 and nearly stall.

 

[Bedwards]

Anyone?

 

[Z34Phoenix]

Sounds like a vac leak .... Timing could be low cause of the rpm falling.

 

[matt5112]

Told you about timing issue...

Had similar issue.

Solved with revised tune.

See Overkill for more details.