mazzuri super headers
Correct. Apparently it would be background noise related, not knock related. See below for complete explanation of Toyota's implementation of P0328 DTC:
Any chance there is an exhaust leak or mechanical damage to sensor one bank one?
FWIW, if it were general knock, you would have two DTCs - one for each bank.
Any chance there is an exhaust leak or mechanical damage to sensor one bank one?
FWIW, if it were general knock, you would have two DTCs - one for each bank.
Driver
Joined: Oct 2006
Posts: 159
Likes: 0
From: CA
Correct. Apparently it would be background noise related, not knock related. See below for complete explanation of Toyota's implementation of P0328 DTC:
Any chance there is an exhaust leak or mechanical damage to sensor one bank one?
FWIW, if it were general knock, you would have two DTCs - one for each bank.
Any chance there is an exhaust leak or mechanical damage to sensor one bank one?
FWIW, if it were general knock, you would have two DTCs - one for each bank.
Also, looking at the fail-safe sheet I noticed only 3 things will reset the CEL by turning the car off and on again... which are:
1. Air-Fuel Ratio (A/F) Sensor Heater
2. Heated Oxygen Sensor (HO2S) Heater
3. Knock Sensor
of the 3 only the knock sensor DTC will pull power the way it does.
I now know it's a knock issue 100% and the thing that points me to it being our 91 gas here in so CAL, is that Jay is not having this issue with 93 gas and it only came up for me ones as I tested most of the time with 100 octane, it only came up when I used 91 one time.
Driver
Joined: Oct 2006
Posts: 159
Likes: 0
From: CA
Well all I can tell you is that this weekend I put anouther 100 miles on the headers, and spent 2 hours in traffic going from burbank to anahiem, and the issue didn't pop up again. This morning I spent a hour in traffic again no issue.
Now here's something. This weekend and including today I drove the car differently than I ussally due. The two times I got the error was in traffic shifting between 2nd and 3rd.
Would driving out of 3rd at really low speeds cause this problem?
This weekend and today I made sure I down shifted to either 1st or 2nd, based on how slow I was going. Where normally I would stay in 2nd and 3rd.
Daniel did any folks in Cali with an automatic transmission buy the headers? Are they having any issues?
Now here's something. This weekend and including today I drove the car differently than I ussally due. The two times I got the error was in traffic shifting between 2nd and 3rd.
Would driving out of 3rd at really low speeds cause this problem?
This weekend and today I made sure I down shifted to either 1st or 2nd, based on how slow I was going. Where normally I would stay in 2nd and 3rd.
Daniel did any folks in Cali with an automatic transmission buy the headers? Are they having any issues?
Only one other person has gotten one local, but his is a 350, I will be installing his soon and we shall see.
Last edited by mazzuri; Mar 10, 2008 at 06:44 PM.
Lexus Test Driver
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From: Dallas
Pole Position
Joined: Oct 2006
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From: California
Crazy IS, you need to pull the DTC from your ECM. It is possible that you and Mazzuri are experiencing different problems. Besides, its the first step one should performe when troubleshooting.
Driver
Joined: Oct 2006
Posts: 159
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From: CA
He is 100% having the same issue, all his symptoms are exactly the same as what I had.
Lead Lap
Joined: Oct 2007
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From: TX
Rookie
Joined: Jun 2007
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From: California
No still on 91.
I just changed the way i drive.
Also I noticed the computer changed. When I first put on the headers a full tank of gas would show as approximate range 388 miles. Now a full tank shows 352 miles. what do you think?
I just changed the way i drive.
Also I noticed the computer changed. When I first put on the headers a full tank of gas would show as approximate range 388 miles. Now a full tank shows 352 miles. what do you think?