Anything about Ford EEC tuning. TwEECer and Moates questions dominate, but there's some SCT and OBD-II knowledge too.

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George
Gear Head
Posts: 28
Joined: Sun Jul 20, 2003 4:37 pm

Spark Advance Question

Post by George » Tue Jul 12, 2005 6:08 pm

I did a datalog of my car the other day and everything looked fine, so the next day with out changing a single thing i did anothe datalog and the spark doesn't advance at all.I drove this thing for an half hour and the spark never moved off of 5.I even revved the thing almost to the rev limiter and it never changed.Any help would be greatly appreciated. :)
94 GT,T4M0,S-trim,AFR 165,B31 cam,GT40,full exhaust,tweecer RT,EA Analizer
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blksn955.o
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Posts: 178
Joined: Mon May 24, 2004 2:14 pm
Location: st. louis/st. charles MO

Post by blksn955.o » Tue Jul 12, 2005 8:56 pm

Did you select the spark to datalog? How did it drive? Is the spout in?

I would think the car would run rather poor if it only had 5* across the board.
1994 black mustang GT:
thumper ported GT40 heads, Tmoss ported GT40 intake, TFS stage 1 cam, 24#inj,DSSpro bullet 306, 5spd.,180t-stat,compucar 50-175 wet shot, MSD 6al &window, CBAZA J4J1
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George
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Posts: 28
Joined: Sun Jul 20, 2003 4:37 pm

Post by George » Tue Jul 12, 2005 11:38 pm

blksn955.o wrote:Did you select the spark to datalog? How did it drive? Is the spout in?

I would think the car would run rather poor if it only had 5* across the board.
Spark was selected and the spout was in.To be honest with you the car didn't run bad at all.
94 GT,T4M0,S-trim,AFR 165,B31 cam,GT40,full exhaust,tweecer RT,EA Analizer
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blksn955.o
Regular
Posts: 178
Joined: Mon May 24, 2004 2:14 pm
Location: st. louis/st. charles MO

Post by blksn955.o » Wed Jul 13, 2005 12:28 pm

I left out my spout one time a long time ago and the car ran like crap at 10* so I would think it would be worse at 5*.

Have your tried to datalog again in case it was a bad datalog?
1994 black mustang GT:
thumper ported GT40 heads, Tmoss ported GT40 intake, TFS stage 1 cam, 24#inj,DSSpro bullet 306, 5spd.,180t-stat,compucar 50-175 wet shot, MSD 6al &window, CBAZA J4J1
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scott88
Tuning Addict
Posts: 318
Joined: Thu Dec 09, 2004 6:00 pm
Location: Albany, NY

Post by scott88 » Mon Jul 18, 2005 12:45 am

This happened to me one day when I changed the switch position during a datalog and didn't realize it would matter. The spark numbers didn't move, as well as a few other readings got all screwed up. Did any other readings go haywire? Maybe you change dthe switch position by accident? I resent the tune and redid the datalog and everything worked fine. Just a thought.

Scott
88 Mustang LX, DSS 306, Moates QH v 1.6 w/self-tuned GUF1/A9P using BE & EA, Tremec 5 speed, LM-1 Wideband & Vortech S-trim, Crane 2031 cam, AFR 185 heads, Hooker longtubes, some other goodies.
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George
Gear Head
Posts: 28
Joined: Sun Jul 20, 2003 4:37 pm

Post by George » Mon Jul 18, 2005 8:38 pm

scott88 wrote:This happened to me one day when I changed the switch position during a datalog and didn't realize it would matter. The spark numbers didn't move, as well as a few other readings got all screwed up. Did any other readings go haywire? Maybe you change dthe switch position by accident? I resent the tune and redid the datalog and everything worked fine. Just a thought.

Scott
I blew a head gasket so i haven't been able to check it again.The switch didn't move at all and none of the other settings were messed up.It was probably just corupt or something. :evil:
94 GT,T4M0,S-trim,AFR 165,B31 cam,GT40,full exhaust,tweecer RT,EA Analizer
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