Just had a jegs 5

Tiny
ANONYMOUS
  • MEMBER
  • 1997 CHEVROLET SILVERADO
  • 215,000 MILES
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
Wednesday, December 5th, 2012 AT 11:41 PM

2 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
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
Was this
answer
helpful?
Yes
No
Thursday, December 6th, 2012 AT 3:43 AM
Tiny
D23DAJA
  • MEMBER
  • 6 POSTS
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
Was this
answer
helpful?
Yes
No
Sunday, January 20th, 2013 AT 1:46 AM

Please login or register to post a reply.

Related Oxygen Sensor Content

Oxygen Sensor
GUIDE
Oxygen Sensor
Oxygen sensors are made of reactive materials which limits their lifespan. Aside from mechanical failures such as shorted heating elements or physical damage, these sensors...
VIEW MORE