K1500 Problems i wasnt looking 4 - Page 5

mudseeker · 10-23-2009, 08:19 PM

threads merged to stop any confusion and/or double posts.

crabtruck · 10-23-2009, 09:02 PM

And a nice job of it too.

lemontor · 10-24-2009, 12:07 PM

well i'm getting the TBI problems worked out but i've got to pull my codes and i'm getting 12, which is good, 15 which my truck is cool so.. thats good, and 32, which says "EGR circuit" and MAP (open). does anyone know about this???

Also to leolkfrm it's a 93 k1500 5.7. which youve aready guess most of that brother. THANX fellows

lemontor · 11-02-2009, 04:24 PM

well i'm getting the TBI problems worked out but i've got to pull my codes and i'm getting 12, which is good, 15 which my truck is cool so.. thats good, and 32, which says "EGR circuit" and MAP (open). does anyone know about this???

Also to leolkfrm it's a 93 k1500 5.7. which youve aready guess most of that brother. THANX fellaz

crabtruck · 11-02-2009, 05:42 PM

32 code does not actually check EGR,
ECM compares what it's trying to get from EGR by looking at MAP.
Code will remain for 50 keycycles after actual fault, then self-clear.
Code sets after 2 failures of test at 10-25% steady throttle,
above 32mph, MAP 15kPa<>47.5kPa, desired EGR command > 93%.

Start by checking for good connection at MAP R-side by dist (3wire:Gry,Grn,Ppl)
and EGR solenoid (2wire:Pnk/Blk,Gry), then check vac hoses.
If applying a direct vac to EGR should be able to see it move with mirror.
closed<2", full open>8.5" .
May want to remove and clean EGR valve.

A search for EGR in forum threads will pull up a lot of info & experiences.

Crmzendrgone · 11-03-2009, 11:24 AM

Quote:

Originally Posted by crabtruck

32 code does not actually check EGR,
ECM compares what it's trying to get from EGR by looking at MAP.
Code will remain for 50 keycycles after actual fault, then self-clear.
Code sets after 2 failures of test at 10-25% steady throttle,
above 32mph, MAP 15kPa<>47.5kPa, desired EGR command > 93%.

Start by checking for good connection at MAP R-side by dist (3wire:Gry,Grn,Ppl)
and EGR solenoid (2wire:Pnk/Blk,Gry), then check vac hoses.
If applying a direct vac to EGR should be able to see it move with mirror.
closed<2", full open>8.5" .
May want to remove and clean EGR valve.

A search for EGR in forum threads will pull up a lot of info & experiences.

This is the most helpful info. I have seen, seeing as how I was going to ask does a TBI have a MAF sensor. I too have the dreded 32 code but haven't found time to fix my own vehicle.

10-23-2009, 08:19 PM	#41
mudseeker Senior Moderator Join Date: Feb 2006 Location: michigan Posts: 6,375	threads merged to stop any confusion and/or double posts. __________________ i'd rather be hunting

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10-23-2009, 09:02 PM	#42
crabtruck Senior Member Join Date: Jul 2007 Location: on your 9 Posts: 3,366	And a nice job of it too.

10-24-2009, 12:07 PM	#43
lemontor Full Member Join Date: Oct 2009 Posts: 18	well i'm getting the TBI problems worked out but i've got to pull my codes and i'm getting 12, which is good, 15 which my truck is cool so.. thats good, and 32, which says "EGR circuit" and MAP (open). does anyone know about this??? Also to leolkfrm it's a 93 k1500 5.7. which youve aready guess most of that brother. THANX fellows

11-02-2009, 04:24 PM	#44
lemontor Full Member Join Date: Oct 2009 Posts: 18	well i'm getting the TBI problems worked out but i've got to pull my codes and i'm getting 12, which is good, 15 which my truck is cool so.. thats good, and 32, which says "EGR circuit" and MAP (open). does anyone know about this??? Also to leolkfrm it's a 93 k1500 5.7. which youve aready guess most of that brother. THANX fellaz

11-02-2009, 05:42 PM	#45
crabtruck Senior Member Join Date: Jul 2007 Location: on your 9 Posts: 3,366	32 code does not actually check EGR, ECM compares what it's trying to get from EGR by looking at MAP. Code will remain for 50 keycycles after actual fault, then self-clear. Code sets after 2 failures of test at 10-25% steady throttle, above 32mph, MAP 15kPa<>47.5kPa, desired EGR command > 93%. Start by checking for good connection at MAP R-side by dist (3wire:Gry,Grn,Ppl) and EGR solenoid (2wire:Pnk/Blk,Gry), then check vac hoses. If applying a direct vac to EGR should be able to see it move with mirror. closed<2", full open>8.5" . May want to remove and clean EGR valve. A search for EGR in forum threads will pull up a lot of info & experiences.