I need some help figuring out what keeps causeing the light to go on while im on the express way. my light came on about a month ago because of the tps. i replaced it and everything was good. now my light comes on. my car doesnt do anything funny at all. once i shut the car off and turn it back on its ok. if someone can please help me i would really appriciate it. thanks

i just checked it and its a code 32. what should i look for. and i also tried reseting the code.

32 Barometric Pressure (BARO) Sensor circuit failure
Exhaust Gas Recirculation (EGR) valve diagnostic switch - closed during engine startup or open when EGR flow requested by ECM
EGR/EVRV (Electronic Vacuum Regulator Valve)

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Rich
white '86 se: , 2" drop, coil overs, KYB's. CRX intake, ported manifolds

Gold '86se: ,350 bored .030 over,World Products s/r Torquers, ported, Manley valves, edelbrock 750cfm, carb sanderson cc90's,4:10,Spec stage 3copper puck clutch , adj.Koni's, Eibach's,polly. and lots more!!

'92 BMW 325i : borla exhaust, ST brace, cold air intake

EGR control valve switch is toast (or the valve itself).

if you don't want to actually fix the problem, gently tug on the two wires going into the small black box on top of the solenoid. Turn them face to face, and slide them together. ECM now thinks that the switch is on. Done it on a dozen cars and it works fine.

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87/88 V6 5spd Notchback Hybrid (coming very soon - Fastback conversion into a "FormulaGT")

My page: http://www.fieroclub.com

EGR valve switch translates into the EGR solenoid. Check the hoses on the solenoid, if they are all good, you more than likely have a bad solenoid.

Had the same exact problem, and my solenoid was bad.

Had the same thing on my 86.
Where exactly is the EGR valve switch that translates into the EGR solenoid?

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jetman "aka" Dangerkitty To The Rescue

quote Originally posted by jetman: Where exactly is the EGR valve switch that translates into the EGR solenoid?

Right side of the engine.
Just below the thermostat housing.
Above the belt (sorta).
Looks like a tube about 1" in diameter.
Has two hoses attached to it.
1 4pin connector.

The sensor switch is the flat squarish thing attached to the top of it.

Check the small hose theat runs from the solenoid to the egr valve first. That hose seems to give lots of us problems.

I just got done working on my car because every once in a while I'd get a CES light (lean exhaust) at cruise. So I started sniffing around and low and behold my EGR valve was the culprit.

2 things were wrong

The return spring was very weak and the valve leaked vaccume big time. IF it did not have as bad a vaccume leak as it did the EGR would be open all the time!

The vaccume hose was pulling constant vaccume and it is not supposed to, It should only pull vaccume when the throttle is off idle.

This would account for the rampent idle seeking and occasional stalling at lights and stop signs. The hose was mixed up with the fuel vapor canister.

Horrid code 32 - luckily I traced mine down to a vacuum leak at the EGR solenoid.. A lot cheaper than replacing the rest of the system. Of course, I had to replace the broken EGR valve first. (When I bought the car it had been 'wired' on)

Ok another thing is that i have a newer egr valve on the car. no weird idles or nothing just the light. and what is watts talking about with just putting the 2 lines together?? any pictures? thanks

quote Originally posted by anthony_86gt:Ok another thing is that i have a newer egr valve on the car. no weird idles or nothing just the light. and what is watts talking about with just putting the 2 lines together?? any pictures? thanks

You can have as new an EGR valve as you like - has no bearing on what the ECM can see (the state of that switch).

This is an overall shot with the wires noted:

And closer up, noting the wires, and the arrow pointing to roughly where they come from:

My car dose it too and it is a bad egr solenoid. Replacement can still be bought from gm and are under $100 i think.

I bet a wrecking yard would have one thats only $5.

Had the same problem awhile back. As some have mentioned I replaced the EGR solenoid and everything was fine.

I swapped out 3 solonoids in my car, I still get the darn code 32. Should I try the actual EGR piece on the crossover now?

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--1986 SE V6, Wild Custom Notchback
--1984 SE Modified Notchback

quote Originally posted by Jncomutt: I swapped out 3 solonoids in my car, I still get the darn code 32. Should I try the actual EGR piece on the crossover now?

I wouldn't bother - the ECM can't see the valve! I'd verify the wiring between the EGR solenoid and the ECM. There's only 4 wires. Pull the connector off the solenoid, and pull the connectors off the ECM. Then just use a multimeter with audible continuity (easiest way anyhow) to probe each of the 4 lines.