Replaced knock sensor and...
Thread Starter
Senior Member
Joined: Jan 2009
Posts: 611
Likes: 2
From: DE
Car: 1990 Firebird Formula
Engine: LB9 - 5.0 TPI
Transmission: 700R4
Axle/Gears: 2.73, LSD
Replaced knock sensor and...
Now I get a code 45 after the car runs for about 10 seconds. Any ideas? Idles and runs fine as far as I could tell, drove about a mile.
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Replaced knock sensor and...
Was it the correct KS for your engine / year?
One size does not fit all
One size does not fit all
Thread Starter
Senior Member
Joined: Jan 2009
Posts: 611
Likes: 2
From: DE
Car: 1990 Firebird Formula
Engine: LB9 - 5.0 TPI
Transmission: 700R4
Axle/Gears: 2.73, LSD
Re: Replaced knock sensor and...
I hope so. The information given to them was correct and it seems identical to the one that was on there. I think the problem has to do with how tight/loose it is, I didn't use a torque wrench. Tomorrow.
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Supreme Member
Joined: Jan 2003
Posts: 2,133
Likes: 4
From: Houston, Texas
Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Re: Replaced knock sensor and...
This is a single wire sensor that uses the engine block for ground return, using Teflon tape on any sensor of this type may keep it from making a good ground.
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