93 Lumina 3.1L Service Engine Soon light.. CODE 32 Set

[Inline2.2]

Hi, everyone.

 

I got another problem with my dad's 93 Lumina. He said on the way home it set a SES soon light. When he got home I checked the codes and it set code 32... Trouble Code 32 indicates that the Exhaust Gas Recirculation (EGR) system has detected a fault.

 

What do I need to check first to determain the problem... As much help possible is appreciated... I'm not familiar with this engine.

[White93z34]

my old car did that from time to time, never made a difference in how it ran. may want to pull the EGR off and clean it out with some brake cleaner, carbon may have built up in it.

[kknobl]

my old car did that from time to time, never made a difference in how it ran. may want to pull the EGR off and clean it out with some brake cleaner, carbon may have built up in it.

 

My Grand Prix is throwing the same code. Car runs absolutely fantasic in both highway and mixed driving but that SES light will trip after driving on the highway and letting off the gas on an offramp. I guess the EGR does not change the mixture fast enough once RPMs drop and thusly sets the code. It's never done it in mixed driving, but 55 MPH seems to be the magic number.

 

Anyway, any ideas as to where the EGR is located on a 3.1 MPFI?

 

Thanks,

Kevin

[Robby1870]

yeah, behind the throttle body, its a 3 tower black thing that will have a tube going to the rear exhaust manifold and one electrical connector on it.

[3pt1lumina]

my old car did that from time to time, never made a difference in how it ran. may want to pull the EGR off and clean it out with some brake cleaner, carbon may have built up in it.

 

My Grand Prix is throwing the same code. Car runs absolutely fantasic in both highway and mixed driving but that SES light will trip after driving on the highway and letting off the gas on an offramp. I guess the EGR does not change the mixture fast enough once RPMs drop and thusly sets the code. It's never done it in mixed driving, but 55 MPH seems to be the magic number.

 

Anyway, any ideas as to where the EGR is located on a 3.1 MPFI?

 

Thanks,

Kevin

 

 

wow have you driven my Lumina ? thats the SAME exact thing my car does! I did replace the EGR valve though because the original caused the car to completely stop running. After replacing it, the light still comes on. Do I care? Nope, as long as I dont lose power (which Im not).

 

Dont worry too much about it, I dont nor does anyone else it sounds like.

[Dannymik]

my old car did that from time to time, never made a difference in how it ran. may want to pull the EGR off and clean it out with some brake cleaner, carbon may have built up in it.

 

My Grand Prix is throwing the same code. Car runs absolutely fantasic in both highway and mixed driving but that SES light will trip after driving on the highway and letting off the gas on an offramp. I guess the EGR does not change the mixture fast enough once RPMs drop and thusly sets the code. It's never done it in mixed driving, but 55 MPH seems to be the magic number.

 

Anyway, any ideas as to where the EGR is located on a 3.1 MPFI?

 

Thanks,

Kevin

 

 

wow have you driven my Lumina ? thats the SAME exact thing my car does! I did replace the EGR valve though because the original caused the car to completely stop running. After replacing it, the light still comes on. Do I care? Nope, as long as I dont lose power (which Im not).

 

Dont worry too much about it, I dont nor does anyone else it sounds like.

 

did you get that SES code scannned that your 100% positive its the same problem?

[kknobl]

my old car did that from time to time, never made a difference in how it ran. may want to pull the EGR off and clean it out with some brake cleaner, carbon may have built up in it.

 

My Grand Prix is throwing the same code. Car runs absolutely fantasic in both highway and mixed driving but that SES light will trip after driving on the highway and letting off the gas on an offramp. I guess the EGR does not change the mixture fast enough once RPMs drop and thusly sets the code. It's never done it in mixed driving, but 55 MPH seems to be the magic number.

 

Anyway, any ideas as to where the EGR is located on a 3.1 MPFI?

 

Thanks,

Kevin

 

 

wow have you driven my Lumina ? thats the SAME exact thing my car does! I did replace the EGR valve though because the original caused the car to completely stop running. After replacing it, the light still comes on. Do I care? Nope, as long as I dont lose power (which Im not).

 

Dont worry too much about it, I dont nor does anyone else it sounds like.

 

did you get that SES code scannned that your 100% positive its the same problem?

 

I used the paperclip method to pull my code...

 

Kevin

[kknobl]

my old car did that from time to time, never made a difference in how it ran. may want to pull the EGR off and clean it out with some brake cleaner, carbon may have built up in it.

 

My Grand Prix is throwing the same code. Car runs absolutely fantasic in both highway and mixed driving but that SES light will trip after driving on the highway and letting off the gas on an offramp. I guess the EGR does not change the mixture fast enough once RPMs drop and thusly sets the code. It's never done it in mixed driving, but 55 MPH seems to be the magic number.

 

Anyway, any ideas as to where the EGR is located on a 3.1 MPFI?

 

Thanks,

Kevin

 

 

wow have you driven my Lumina ? thats the SAME exact thing my car does! I did replace the EGR valve though because the original caused the car to completely stop running. After replacing it, the light still comes on. Do I care? Nope, as long as I dont lose power (which Im not).

 

Dont worry too much about it, I dont nor does anyone else it sounds like.

 

I'm not too worried about it at all - car runs absolutely fantastic. Did about a 40 mile drive today, and about 30 miles of it were highway. The car is definitely not lacking for power.

 

Kevin

[1990lumina]

Don't you have to reset the ECM after replacing the part 3pt1lumina???

 

Maybe that's why the light is still on, however I dunno.

 

- Jeff L.

[3pt1lumina]

Don't you have to reset the ECM after replacing the part 3pt1lumina???

 

Maybe that's why the light is still on, however I dunno.

 

- Jeff L.

 

yup I reset the computer. The only reason I replaced it was because when it was taken off to clean it IT GOT RAN OVER at the shop. So they put a new one on and didnt charge me for it They did reset the light and it was off until I got near my house, then it went back on. It comes and goes whenever it wants. (This was about 1.5years ago now).

 

All of the problems with my light started when the motor was rebuilt in 1999. Im guessing there is a vacuum line or something thats not right; I've looked but as I said before, she still runs ok so I'm not too worried about it.

[slick]

Said it before, and I'll say it again.

 

Get some carb/throttle body cleaner. Pick up some of those little pipe cleaners. Take off the EGR. Spray that shit into the manifold, let it sit for about 10-15 minutes, then start working away with the little pipe cleaners. Get all the carbon build up off. Hell, if you really want to clean it good, take off the TB, and work at it from the inside as well. Reassemble the parts. Reset ECM. Your good.