Cold motor timing questions...

[ShadowFromHell]

Im working on a new way to add fuel to our cars, cheaply and easily... But have a question. Do our ECU's add or take away any timing when the engine temp is cold? Ive looked at cal's in MP tuner and cant find any tables for this. I know when the motor is cold, it adds more fuel, but does it mess with the timing? Once I have this info I can figure it out and share my idea.

[Juggy]

theres a cold enrichment table for spark

advance from map cold

not sure what it be in MP tuner....

[ShadowFromHell]

Any idea what it does? Pull or add?

[Juggy]

it pulls timing

anything under 160 deg F i believe.....there may be a way to adjust that too tho....

[ShadowFromHell]

So its pulling it, not adding it. Thats what I wanted to hear :). I looked it over again, found those tables and thought the same thing. Thanks!

[Juggy]

the tables should be pretty similar until they get into boost. the cold table will be slightly lower, then really drop off timing alot more to be safe when boosting

[ShadowFromHell]

Since I have your attention... Does the intake temp sensor mess with timing? I only see fuel tables for it, no spark.

Thanks again

[Juggy]

im sure someone can answer this better. but I do believe the temp sensor is referenced through fuel

[GLHNSLHT2]

The way I've seen the tables it ADD's timing. Usually only a couple degrees. On the 5spd cars where I seal off the AIS passage I bump that table up 4 degrees or so more so the car idles when cold. In fact today I had the scanner plugged into my new yorker. Warm temp is 18 degrees of timing. When fired up I was running 22 at idle till about 130ish.

[ShadowFromHell]

That is what I see too, however after 6psi (on a sbec vnt) it pulls timing, so it will work for what I want to do. Im still not seeing any timing tables for the intake temp, safe to assume all it does is add fuel?

[Force Fed Mopar]

On my '87 cal (based off the '87 MP StageII), it really doesn't do anything except it adds timing in the low vacuum and low boost areas.