running rich....know where the adjustment screw is?
What are you trying to adjust? The rod or the TPS screw? If it's the TPS screw then you measure the voltage of the Green/Red wire in the TPS pigtail w/key to on after the car has been driven for 20 minutes or so to thoroughly warm the engine up and the voltage on the G/R wire should be 1 volt. Adjust screw until the voltage reading indicates 1 volt.
All the ISC does is disable the BAC. Nothing more.
Adjusting the variable resistor will only effect your mixture at IDLE and no where else.
Bumpstart, who seems to very knlowlegeable about these cars, says otherwise. Also, if I were to go way lean on the setting and then take the car for a drive I will find that the car gasps for life at the high end of the rpm range as if it is being starved while when readjusted to a richer setting the car will not act as such at all.
Well, I am telling you thats not true. The only thing that the ecu uses off of idle is the TPS (marginally) and the O2 for cruise. Everything else is in the lookup table not effected by the variable resistor.
Then why would my car act as such when the only change was made to the setting of the Variable Resistor, one w/a lean setting followed up by an adjustment to a richer setting over the course of 10 minutes of each other and I verified this behavior on two separate occasions.
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
Jul 1, 2023 04:40 PM
Frisky Arab
2nd Generation Specific (1986-1992)
13
Aug 18, 2015 05:30 PM
rkhanso
2nd Generation Specific (1986-1992)
1
Aug 13, 2015 11:40 AM
KAL797
Test Area 51
0
Aug 11, 2015 03:47 PM



