holy sensors, batman!!

[super ranger 200k]

so i went out to my pick-up just now an dlet it warm up and decided to check the maf and i unplugged it while it was running and no change. the truck still ran normally. so i plugged it back in and unplugged the iac and the truck ran normally, no change. i unplugged both of them and it still ran. what the hell is wrong?

 

[Ranger#1]

your not in closed loop idle ?

 

[super ranger 200k]

Please Explain Closed Loop Idle?

 

[Earl43P]

PCM operates in open loop for cold start, uses "canned" values in place of actual sensors.
After CTS reports X increase in temperature, PCM goes into closed loop and actually uses the engine sensors to make it run more efficiently.

 

[super ranger 200k]

so ur sayin that i should drive 'round for x amount of time then see waht happens?

 

[Ozwynn]

yes

 

[Otto]

Then try putting the negative and posotive terminals together. This will shock your vehicles electrical system back to life. jk jk dont do that