crazy151drinker
New member
If someone wants to look at it by all means I need all the help I can get lol. Max boost 11.2lbs, lots of knock, up to 10 degrees of spark retard, idles like crap, DTC code 45 (rich).
Mods: Walbro 255 with Ratronix harness, Johnson IC pump, drop in K+N, recent tune up (cap, rotor, wires, and correct plugs). Oh and no exhaust after the cat.
It was running better before I installed the Walbro. I think I have an electrical issue (too much draw from the Walbro??).
He is my reasoning- If I try to turn on the AC the truck dies.
If I roll down the power windows it will affect the idle.
If I roll down the window all the way to the bottom and continue to hold down the switch the truck will die.
Datamaster listed the Voltage as 13.4-13.9 the whole time except for the end of the run when I started playing with the window and it dropped to 12.5
Strange.
Are they always supposed to be in Closed Loop?? It was in Closed loop from the time I started it till the time I turned it off.
Truck has a New battery.
Also after it warms up when I put it back into park it the RPMs cycle from 1000-500-1000-500 back and forth back and forth. It was really bad after I first put in the Walbro. In fact it would die as soon as I put it into Reverse or Drive. I cleaned up the battery terminals and tightened everything back up and now its not as bad. Like I said- electrical problem.
Either way, the Datamaster kicks ass! Now I just have to register it. Thank you Detroit Turbo
Alternator?? I need to buy a voltmeter lol.
The Alien strikes again.
Edited to Add the my TPS% was maxed out at 81%..
Edited again to add: Found ONE instance where boost maxed to 15.3lbs. Noticed when I was in boost there was a mirrored drop in voltage.
Datamaster is facinating. Im going to get a hard on for this tuning shit.
Edited again to add: Playing with the Histogram. Lean conditions 2400-2800 with MAP Kpa between 40-50. Lower RPMs waaaaaay rich. 3600+Rpms with MAP Kpa 100+ mixture 'ideal'. Im going to be up all night playing with this thing...
Mods: Walbro 255 with Ratronix harness, Johnson IC pump, drop in K+N, recent tune up (cap, rotor, wires, and correct plugs). Oh and no exhaust after the cat.
It was running better before I installed the Walbro. I think I have an electrical issue (too much draw from the Walbro??).
He is my reasoning- If I try to turn on the AC the truck dies.
If I roll down the power windows it will affect the idle.
If I roll down the window all the way to the bottom and continue to hold down the switch the truck will die.
Datamaster listed the Voltage as 13.4-13.9 the whole time except for the end of the run when I started playing with the window and it dropped to 12.5
Strange.
Are they always supposed to be in Closed Loop?? It was in Closed loop from the time I started it till the time I turned it off.
Truck has a New battery.
Also after it warms up when I put it back into park it the RPMs cycle from 1000-500-1000-500 back and forth back and forth. It was really bad after I first put in the Walbro. In fact it would die as soon as I put it into Reverse or Drive. I cleaned up the battery terminals and tightened everything back up and now its not as bad. Like I said- electrical problem.
Either way, the Datamaster kicks ass! Now I just have to register it. Thank you Detroit Turbo
Alternator?? I need to buy a voltmeter lol.
The Alien strikes again.
Edited to Add the my TPS% was maxed out at 81%..
Edited again to add: Found ONE instance where boost maxed to 15.3lbs. Noticed when I was in boost there was a mirrored drop in voltage.
Datamaster is facinating. Im going to get a hard on for this tuning shit.
Edited again to add: Playing with the Histogram. Lean conditions 2400-2800 with MAP Kpa between 40-50. Lower RPMs waaaaaay rich. 3600+Rpms with MAP Kpa 100+ mixture 'ideal'. Im going to be up all night playing with this thing...
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