Does truck require a equalizer pipe?

EC.SWEET

MEMBER
1993 CHEVROLET SILVERADO
166,000 MILES

I have a 93 Chevy silverado. I had dual exhaust installed. Truck stalls and runs rough now. There is one o2 sensor. I didn't have issues prior to new exhaust.

Thursday, November 10th, 2011 AT 6:05 AM

6 Replies

JACOBANDNICKOLAS

MECHANIC
109,755 POSTS

Yes. The single O2 sensor is only regestering one bank of the engine. That is throwing things off for the computer.

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Thursday, November 10th, 2011 AT 6:08 AM

EC.SWEET

MEMBER
6 POSTS

Can I piggyback an o2. Will a equalizer pipe cure this?

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Thursday, November 10th, 2011 AT 6:11 AM

JACOBANDNICKOLAS

MECHANIC
109,755 POSTS

It should, but I can't say for sure. Do you have catalytic converters on each side?

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Thursday, November 10th, 2011 AT 6:13 AM

EC.SWEET

MEMBER
6 POSTS

No cats. It fell off years ago! Truck is only factory wired for 1 o2 sensor. What options r there?

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Thursday, November 10th, 2011 AT 6:18 AM

JACOBANDNICKOLAS

MECHANIC
109,755 POSTS

Actually, it is federal law that it has converters on both sides. The only option I can recommend is to install converters and an equalizer pipe. Keep in mind, I am only allowed to recommend direct fit parts. Plus, I have to keep it legal.