If the smog/air pump is removed, along with the air tubes to the exhuast manifold, will the oxygen sensor notice the lack of injected air & send a signal to the computer to change the air/fuel mixture??

 

NO !

 

The only thing you may notice is a code 32, egr, at normal cruising speeds on the highway with low power at steady throttle. You won't get it all the time either.

 

Is there any way 2 correct that code 32 problem without hooking the air injection back up? Mines is disconnected with no intension of reconnecting and I get that code 32 under those same conditions.

 

Nope, not really. Once I knew what the code was, if the light came on while driving the next time I started it it wasnt there. You could try NOT clearing the codes so frequently, or if you're trying to reset the computer to baseline pull the ecm fuse instead of the battery cable.

 

What do you mean pulling the fuse? I thought the only real way to clear the ecm is by disconnecting the negative battery cable.

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91RS-STROKER

 

Pulling the ECM fuse does the same thing, just doesnt empty the memory in the radio and other memory items.

 

I don't disconnect the battery either. I disconnect that single electrical connector that's attached 2 the positive battery cable. It looks like the connector that u disconnect when setting the timing.

 

I have removed my smog pump and all hardware and get code 32 all the time. I was told the only way to get rid of the code is when you have a custom chip burnt, have them turn the test off in the ecm and set all percentages to 0%.

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1986 Iroc Z 305
3.23 posi-rear
ported mass-air
custom ram-air
removed air pump, converter, straight pipe no muffler
0-60 5.5 sec
1/4 mile at 102mph
top speed 160mph (racing a mustang)
est 285hp
fiberglass hood
$2000 Alpine stereo hit 135 in spl comp.

 

I have removed all that crap 8 months ago and have never had a code 32.

The car run fine and had one less wheel to turn. There might have been some improvement in performance but it is hard for me to say because I did few other mods as well in the same time.

Go ahead take it all out it is useless.


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89Iroc, 305 TPI, WC T5, 3.08 Posi, Flowtech Headers 1 1/2, Hooker Y-Pipe 2 1/2, 3 inch over the axle, Flowmaster 80, No Cat, Aluminium Driveshaft, Ported Plenum, Air Foil, MAF Screens/Fins removed, K&N, Gutted Air Boxes, AFPR @45 psi, Ram Air, Throttle Body By-pass, Bumped Timing @12, Bosch +4, MSD 8mm wires, HP Rotor, Cap and Fuel Filter, Sensi Trac rear Shocks.

 

I say leave it if you have a cat and are a daily driver. Not to say that I like all the emissions tests but I have to say that I don't like seeing daily drivers with no cats. It was designed for a good reason and it does it's job well. For a race car I would still say keep the cat, just get rid of all that other crap like EGR and the smog pump. I'm not a Gore follower but there should be some regulations on daily driver cars.

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, Jon (91 RS too many mods to list)

 

Code 32 Has nothing to do with A.I.R. whatsoever, its a malfunction flag for your EGR (thats the little gold iridite diaphragm hat on your intake manifold with vacuum hoses going to it, its probably gone bad on your car or the solenoid to it has gone bad,very common)

the AIR system has no effect on air fuel ratios because it only works on startup for a few minutes to deliver air upstream of the O2, and your O2 sensor is not monitored during those initial minutes of your car running. After that all of the air is diverted to the catalytic converter

Our OBD1 computers do not monitor the function of the AIR system thus they cannot throw a malfunction flag if the AIR system is removed

code 32 (egr) and A.I.R. are totally unrelated

[This message has been edited by Pablo (edited December 24, 2000).]