New 3.0: Lack of Power
Apr 6, 2012 | 08:49 PM
#21
You cannot. It's severely retarding the timing. Only way is to pull to end and replace the wire and/or knock sensor. It's 95% times just the wire that's broken. They get brittle. Just suck it up and fix it the right way. Sorry.
Apr 6, 2012 | 09:27 PM
#23
Registered User
Joined: Oct 2007
Posts: 2,747
Likes: 3
From: NC
Knock sensor is a common "power killer" on the 3VZE. Replace sensor and wiring harness and you'll notice the power gain. The person who re-built and or replaced the engine shoud have known better.
Glowing manifolds are from an excessive rich mixture "dumping fuel" improper air/fuel mixture.
Glowing manifolds are from an excessive rich mixture "dumping fuel" improper air/fuel mixture.
Apr 7, 2012 | 06:06 AM
#25
Registered User
Joined: Apr 2011
Posts: 487
Likes: 0
From: West Palm Beach, FL
What kind of resistor can I put on that knock sensor? I ran my wire the wrong way when I rebuilt it
an also now I'm having issues with my exhaust. The manifolds are glowing red and it's getting decent flow out the exhaust. Possible plugged glass pack?i checked the timing on the cams and it's good. The distributor checked our as well done a full tune up and still nothing. I'm so stumped. I gotta get power before I can go play in the trails again.
an also now I'm having issues with my exhaust. The manifolds are glowing red and it's getting decent flow out the exhaust. Possible plugged glass pack?i checked the timing on the cams and it's good. The distributor checked our as well done a full tune up and still nothing. I'm so stumped. I gotta get power before I can go play in the trails again.https://www.yotatech.com/forums/f116...99/index2.html post #27
I did this and it has worked for 6 months. Have to re-torque it occasionally.
Apr 7, 2012 | 10:42 AM
#27
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Joined: Feb 2012
Posts: 62
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From: Ontario, Canada
When I put my engine back together after changing the head gaskets in my '93 I had manifold glowing and it was because I goofed and had the distributor timing way off. I also had a knock sensor code on that engine for 5 years and it ran fine, no lack of power.
Apr 9, 2012 | 08:49 AM
#32
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Joined: Feb 2012
Posts: 11
Likes: 0
From: Arlington, TN
i have dealt with similar "lack of power" and rich smell, i got an O2 code, fuel economy was in the toilet ( <10mpg!) replaced sensor with denso oem replacement and a new AFM (long story on AFM) since those 2 replacements and shaving a little weight off right foot, i am averaging 16-17 mpg, 14mpg in city, best fuel economy since i have owned it, still a little slow on takeoff but seems to have SOME power returns
Apr 9, 2012 | 10:19 AM
#33
Contributing Member
Joined: Apr 2006
Posts: 4,787
Likes: 36
From: TENN Native Languishing in Virginia
i have dealt with similar "lack of power" and rich smell, i got an O2 code, fuel economy was in the toilet ( <10mpg!) replaced sensor with denso oem replacement and a new AFM (long story on AFM) since those 2 replacements and shaving a little weight off right foot, i am averaging 16-17 mpg, 14mpg in city, best fuel economy since i have owned it, still a little slow on takeoff but seems to have SOME power returns
Again, the knock sensor WILL reduce ignition timing to ZERO if it's not reading. That makes power go to crap.
Apr 10, 2012 | 06:00 PM
#38
Thread Starter
Registered User
Joined: Jun 2011
Posts: 50
Likes: 0
From: ohio
How do you ground the shielded wire straight to the ECM? I was thinking the test terminal e1 but that changed nothing. I rerouted it to the right front engine hook. What am I missing. I did use shielded cable wire for temporary use. Are you supposed to let the shielding touch the copper wire? I have no idea what to do.
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