Exactly what triggers closed loop status?

Reply Subscribe

Thread Tools

Search this Thread

Mar 6, 2005 | 11:17 PM

#11

1993 SLE

Senior Member

Certified Car Nut

Joined: Oct 2003

Posts: 19,756

Likes: 1

idle/upper rad hose hot/closed throttle/park or neutral/closed loop/Acc. off/brake not applied

MAF reading in Gm/Sec typical value-5(varies)

TPS reading in Volts typical value- .2-.74

Mar 6, 2005 | 11:23 PM

#12

jachin

Thread Starter

Senior Member

Posts like a Corvette

Joined: Sep 2003

Posts: 1,369

Likes: 1

From: springfield il

Quote:

Originally Posted by 1993 SLE

idle/upper rad hose hot/closed throttle/park or neutral/closed loop/Acc. off/brake not applied

:?: :?: :?: sorry i only got like 2 hours of sleep last night, you have no idea how braindead i am right now.

Mar 6, 2005 | 11:25 PM

#13

glorkar

Senior Member

Posts like a Camaro

Joined: Aug 2003

Posts: 819

Likes: 0

From: Oshkosh, WI

an analog voltmeter works really great for checking all of those sensors. Just tap into the wires with a couple of 't' pins and away you go.

Mar 6, 2005 | 11:34 PM

#14

1993 SLE

Senior Member

Certified Car Nut

Joined: Oct 2003

Posts: 19,756

Likes: 1

Quote:

Originally Posted by jachin

Quote:

Originally Posted by 1993 SLE

idle/upper rad hose hot/closed throttle/park or neutral/closed loop/Acc. off/brake not applied

:?: :?: :?: sorry i only got like 2 hours of sleep last night, you have no idea how braindead i am right now.

that is the conditions that must be present for the reading according to the trusty 93 service manual

Mar 12, 2005 | 05:40 PM

#15

jachin

Thread Starter

Senior Member

Posts like a Corvette

Joined: Sep 2003

Posts: 1,369

Likes: 1

From: springfield il

My MAF is reading about 1000 grams a second at idle, is that normal?

Mar 12, 2005 | 06:23 PM

#16

DrJay

Senior Member

Certified GM nut

Joined: Feb 2003

Posts: 2,095

Likes: 0

From: Georgia

depends a lot on the weather, but yeah that seems to be in the right area. Only thing is if its off by 3-400 you'll never know but it'll cause some issues.

http://www.wellsmfgcorp.com/counterp...erpoint3_2.pdf

Testing and info ^^^