Blazer secondary air pump
Hobgoblin
11-09-2013, 04:08 PM
Hit a deer with my blazer/s10 he destroyed the air pump.i live in kansas -no smog requirements. Can I bypass the pump. And how do I get rid if the service engine light?
Tech II
11-09-2013, 04:21 PM
I don't think you can......
The VCM commands the air pump on, at startup on a cold engine(length of time on, depends on coolant temp)........when the isolator valve opens up, this sends air into the exhaust, which should make the reading lean on the O2 sensor.......if the VCM does not see the exhaust go lean(on a cold engine on startup, the exhaust will be rich), it sets the code.....no way around this one....
The VCM commands the air pump on, at startup on a cold engine(length of time on, depends on coolant temp)........when the isolator valve opens up, this sends air into the exhaust, which should make the reading lean on the O2 sensor.......if the VCM does not see the exhaust go lean(on a cold engine on startup, the exhaust will be rich), it sets the code.....no way around this one....
Hobgoblin
11-09-2013, 04:47 PM
Thx do you know where I can get a cheap pump to relace my bron one. Used is ok
Tech II
11-09-2013, 07:49 PM
Junk yard...
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