Finally an end to Knock sensor issues, had to cheat it though...
11-25-2009, 10:48 AM
#1
Registered User
Thread Starter
Join Date: Nov 2009
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
Finally an end to Knock sensor issues, had to cheat it though...
'91 3vze 4x4 205, 000 miles
Replaced sensor and wiring... Still with no releif from my code 52 (it has plagued me for 18 months). ECU was tested in a friends truck and it worked fine.
In case someone else has suffered with a similar problem. Bought a Piezo transducer $2.00 - two alligator clips $4.00 - duct tape (temp) - stuck it to my intake wired it to the ecu and...
NO MORE CODE 52!!!
Sorry, I am a little excited I have power again...
Replaced sensor and wiring... Still with no releif from my code 52 (it has plagued me for 18 months). ECU was tested in a friends truck and it worked fine.
In case someone else has suffered with a similar problem. Bought a Piezo transducer $2.00 - two alligator clips $4.00 - duct tape (temp) - stuck it to my intake wired it to the ecu and...
NO MORE CODE 52!!!
Sorry, I am a little excited I have power again...
11-25-2009, 03:07 PM
#3
Registered User
Join Date: Oct 2007
Location: Lynnwood, WA
Posts: 23
Likes: 0
Received 0 Likes
on
0 Posts
Sorry, server issues at work.
The electrics scare me a little. If you got power back does that mean you bypassed the knock sensor and it's wide open now?
The electrics scare me a little. If you got power back does that mean you bypassed the knock sensor and it's wide open now?
Last edited by catodon; 11-25-2009 at 05:05 PM.
11-29-2009, 08:24 PM
#5
Registered User
Thread Starter
Join Date: Nov 2009
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
Update. Still working on hard wiring the piezo transducers together. I have 3 little ones in sequence. Not sold on the fix quite yet. I ran into a glitch last week when I had time to work with it. There isn't enough of a signal at idle with just one transducer to maintain the signal to the ecu. Hence 3 transducers now. I borrowed the idea from a Nissan forum.
Hopefully I will be able to finish up tomorrow night...
Hopefully I will be able to finish up tomorrow night...
11-30-2009, 04:22 AM
#6
Registered User
Bypassing a critical part of the EFI/Ignition system is a terrible idea. 
If it's not the wiring, and it's not the ECU, then it's the knock sensor. There are only three things that cause code 52...
Wait until summer when you're climbing a hill and the temperatures are high. Detonation can kill a motor quickly. Especially a 3vze with it's inherent headgasket problems.
If it's not the wiring, and it's not the ECU, then it's the knock sensor. There are only three things that cause code 52...Wait until summer when you're climbing a hill and the temperatures are high. Detonation can kill a motor quickly. Especially a 3vze with it's inherent headgasket problems.
Thread
Thread Starter
Forum
Replies
Last Post
GreatLakesGuy
The Classifieds GraveYard
8
09-04-2015 09:27 AM
crashburnoveride
86-95 Trucks & 4Runners
1
07-10-2015 06:39 AM
