JUST HAD A JEGS 5

1997 Chevrolet Silverado

Tiny

Anonymous

December, 5, 2012 AT 11:41 PM

Just had a jegs 5.7 put in my truck, engine light come on I went to advance auto parts. They put check it it. Showed code po327 /po161 po141 I just put a knock sensor in just before I had to put engine in it could I need another so soon or could the o2 sensors. Could the o2 sensor cause a false reading just call me broke

FOUND 902 RELATED QUESTIONS

2 Answers

Tiny

ASEMaster6371

December, 6, 2012 AT 3:43 AM

Obviously, a high performance motor you spent big bucks for.

With this set up, your computer thinks it is stock and is looking for normal readings which you will never have.

You need a performance shop to add a new chip or whole pcm to compliment your new motor

Roy

Tiny

D23daja

January, 20, 2013 AT 1:46 AM

If you just got the replacement 5.7 then it shouldn't be because it is the same as stock you got the vortec correct if you got an 88-95 5.7 then it. Could bring up a problem

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