oxygen sensor yes OR no ?

[Harley03joe]

Originally Posted by DieselSJ

Code 45 is rich. Check fuel pressure, leaking injectors, etc...

Without the O2, the engine will never go into closed loop and you will have poor performance and mileage.

Thank You Guys For The Info

Tell Me Where The Wire Is That Is To Be Disconnected When Checking Timing
On My 87 Chevy Silverado 5.7 EFI Color And Location A Picture Would Really Help Out

Thank You In Advance
Harley03joe