Smog pump removal. Leave wires unplugged?
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Joined: Oct 2012
Posts: 37
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From: tucson ,az
Car: 86 chevy 28 camaro
Engine: 305 tpi
Transmission: 700r4
Smog pump removal. Leave wires unplugged?
I remove my smop pump and all the equipment to save room under the hood. There were some wires running to the air pump should i just leave them unpluged? Will it throw a engine code? Also a steel air line unhooked now should it be plugged off?
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From: Location, Location!
Car: 92 T/A 'vert
Engine: Mild .040 over L98 4 bolt mains
Transmission: Mostly stock 700R4, 2600 Vigilante
Axle/Gears: LS1 3.42
Re: Smog pump removal. Leave wires unplugged?
Yes. Mine didn't. Yes.
Joined: Apr 2005
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Smog pump removal. Leave wires unplugged?
Is no feedback from AIR system to the ECM so no codes when divertor valves removed
Make the wires safe ; one in each pair is hot with the key on
Make the wires safe ; one in each pair is hot with the key on
Joined: Dec 2004
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Smog pump removal. Leave wires unplugged?
no code for removing the air pump but, if you removed the AIR pump then you are going to be running leaner than 14.7 whenever the ECM is commanding for AIR to be diverted to the exhaust manifolds. This is because the O2mV threshold has been reduced ... but you don't have the extra O2 in the exhaust that would require this change in threshold. So, the INT will subtract fuel to get the O2 voltage within the proper range (which is now 100mV lower).
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