93 Ty datamaster files, look inside please

S

SY2767

Member
I Took the Ty out lastnight before parking it for winter and logged 2 runs, here is some truck info. 46000 miles and no exhaust, just the cat. The outside temp was 34f, the truck is stock except for ic pump hotwire, has new wires, plugs, cap and rotor. I started each run by pinning it to the floor and holding there trans was in overdrive, the truck backfired on each pass about halfway through (i let off on the second run when it did that). If someone could look at these and provide some insight as to why this is running like a pos i would greatly appreciate it. :tup: If this works.....



http://www.mediafire.com/?a9zcaux22g1oee4
 
Last edited:
T

TY162

New member
Re: 93 Ty datamaster files, look inside please

Well, ....I'll take a guess (yeah guesses are Always helpful right?!:) Lol.
Overboosting & fuel cut off because of no exhaust after the cat...and the nice cool air??
 
CalgarySS

CalgarySS

1000 miles and counting..
Re: 93 Ty datamaster files, look inside please

Double check your spark plug gap. I had the same issue recently and a quick regap solved the issue for me.
 
S

SY2767

Member
Re: 93 Ty datamaster files, look inside please

TY162 said:
Well, ....I'll take a guess (yeah guesses are Always helpful right?!:) Lol.
Overboosting & fuel cut off because of no exhaust after the cat...and the nice cool air??
Click to expand...


Were you able to actually view the files? At what point was it overboosting? Max boost that i could see was 14.3, i also noticed my TPS dont read %100 and i did have the pedal pinned to the floor...
 
powercat6

powercat6

Active member
Re: 93 Ty datamaster files, look inside please

Datamastershot.jpg


It hit 20 psi at this instant and also had 10 degrees of spark retard.
 
CGL

CGL

Member
Re: 93 Ty datamaster files, look inside please

Interesting.
All I can see is that this thing doesn´t move, or did I read wrong ? Some 9 sec. to reach 100 km/h.
 
WyoSyclone

WyoSyclone

Active member
Re: 93 Ty datamaster files, look inside please

Due to opening up the exhaust you're moving more air through the motor, relieving exhaust backpressure, and building more boost.... and running out of fuel - you're showing 123% Inj DC on the second run. You can see you're running lean by looking at the O2millivolts.

You also need to get the TPS sensor reading 100%. Check the floormat, cable adjustment, and that the cable hasn't slipped out of the eccentric on the throttle body (mine was like that when I got it). The DTC error you have is 'low TPS'.

You could try bumping up the fuel pressure, but I would either go for a new tune, or put the exhaust back on it.

HTH
 
S

SY2767

Member
Re: 93 Ty datamaster files, look inside please

WyoSyclone said:
Due to opening up the exhaust you're moving more air through the motor, relieving exhaust backpressure, and building more boost.... and running out of fuel - you're showing 123% Inj DC on the second run. You can see you're running lean by looking at the O2millivolts.

You also need to get the TPS sensor reading 100%. Check the floormat, cable adjustment, and that the cable hasn't slipped out of the eccentric on the throttle body (mine was like that when I got it). The DTC error you have is 'low TPS'.

You could try bumping up the fuel pressure, but I would either go for a new tune, or put the exhaust back on it.

HTH
Click to expand...

The only reason it has no exhaust is because it had a cheap ricer muffler (installed in japan i guess) on it with a patched hole in the pipe that was leaking so i removed it, new exhaust coming in the spring. I recently purchased a kenny bell adj fuel regulator that will be going on over the winter months as well. Anything else show up?
 
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