New to scanmaster parked idle vs drive in idle

[Cleaner13]

OK I want to start out by saying I am very new to this whole tuning thing
I would really like to learn more about what I can do to improve my car
so let me start out by saying what mods I have and give my stats from the scan master and maybe someone can see if I am off or what?

thanks in advance

mods and services thus far

RJC power plate
Hooker Exhaust
THDP 3'' test/dump
breathers on both valve covers
rear main seal fixed
valve cover gaskets replaced
big mouth intake
hotwire ground kit and 340 walbro from racetronix
volt booster
dutteweiler neck intercooler
gauges and such
Nitto drag radials 555R
kirban rear springs
moog 5660s in front
positraction
92 Thrasher chip
adj fpr
160* thermostat

ok the car is an 87 GN 60K miles stock turbo, heads, engine, transmission etc
I am running 45psi fuel line off
17.5 boost


this is my scan master read out at idle when my car is in park

AF 05
L8 40
Bat 13.6
Int 128
Blm 128
CLt 175
Ats 83
Tps .46
Iac 26-28
Mal 00
O2s move alot from the range of 076-748
Cross counts I couldnt see cause they kept changing

now when I had the car in drive but was just sitting at a red light these were the readings

AF 06
L8 48-51
Bat 13.3
Int 128
Blm 128
CLt 173
Ats 73-75
Tps .46
Iac 34
Mal 00
cross counts 102 didnt move this time
O2s 042


ok and one other thing
I hit it at WOT for a bit and when I hit the recall button this is what was read
O2s 429 KR 0.0 42MPH

sorry for the book guys
just need to figure out what I am doing

thanks

Carl

 

[U1ARUNIT]

Looks really good to me. About as close as you gonna get.

 

[charlloots]

you might want to bring your tps down to .42 or .44 at idle. tps should be at least 4.7 volts at wot with the engine off and the key on in the ingition. your o2's willbe jumping all over at idle . the o2's at wot should be anywher from 750 - 790 . 750 would be the leaner mix. this should get you going in the wright direction.every thing else looks ok.

 

[bruce]

Originally posted by charlloots
you might want to bring your tps down to .42 or .44 at idle. tps should be at least 4.7 volts at wot with the engine off and the key on in the ingition. your o2's willbe jumping all over at idle . the o2's at wot should be anywher from 750 - 790 . 750 would be the leaner mix. this should get you going in the wright direction.every thing else looks ok.

As low as 3.5v TPS at WOT is fine.
The thing to do is make sure the butterfly fully opens.

Tuning to get a specific O2 voltage is an old wifes tale. Use a WB, learn to read plugs, or actually measure performance. there is a signifigant difference in knowing what O2 voltage you run best at, vs tuning to get some number that someone else runs best at, ain't 2 engines exactly the same.

 

[Cleaner13]

BRUCE- thanks for your help but what does WB stand for?

also with the tuning I heard your supposed to bring your fuel PSI to 42PSI and boost to about 16psi and tune from their

my problem is that I have a thrasher chip and it requires a minimum of 45psi

thanks

Carl

 

[salvageV6]

W.B. = Wide Band O2 sensor not like we have on our cars.

More $$$.

 

[charlloots]

Originally posted by bruce
As low as 3.5v TPS at WOT is fine.
The thing to do is make sure the butterfly fully opens.

Tuning to get a specific O2 voltage is an old wifes tale. Use a WB, learn to read plugs, or actually measure performance. there is a signifigant difference in knowing what O2 voltage you run best at, vs tuning to get some number that someone else runs best at, ain't 2 engines exactly the same.

NO BRUCE 2 engines aint exactly the same . and i didnt give a specific o2 voltage i said 750-790. wake up bruce 3.5 tps volts is NOT enough @ wot. lol
good luck carl
lol

 

[U1ARUNIT]

TPS voltage will jump up .02v when running versus at KOEO. That would make his idle TPS .44v which is fine.