Completed rebuild of 3vze, need some advice
07-10-2017, 05:58 PM
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Completed rebuild of 3vze, need some advice
Ok so I had the heads and valve job done at a machine shop. Put new head gaskets and put everything back together, timing marks perfect, checked the valve clearences to double check the shop and they are perfect. Had the fuel injectors done by witch hunter performance. Added headers and 2 1/4 exhaust. I had the code 52 for the knock sensor but I disconnected it and cleaned the connections and that fixed that issue. No codes now. I know they it's called the 3.slow for a reason this thing has no power. It idles great and runs smooth but the only way I can get any short of power out of it is to advance the timing to what I would have to guess is about 30 degrees. With it set at 15 I can't even get to 70mph. I'm completely lost on what to do and feel like I've wasted about 1,800 bucks. So I'm looking for any advice y'all can give me to try to get something out of this truck. It is GREATLY appreciated
07-10-2017, 07:04 PM
#2
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Base timing cannot be correctly set unless the engine idle is at or slightly below spec: 800-850rpm and the TPS must be sending 'throttle closed' to the ECU. (TPS working correctly and correctly adjusted)
It is not enough that the terminals be jumped in the diagnostic connector, these other two conditions must be satisfied as well to get base timing.
Your base timing may well not be what you think it is.
It is not enough that the terminals be jumped in the diagnostic connector, these other two conditions must be satisfied as well to get base timing.
Your base timing may well not be what you think it is.
07-11-2017, 05:18 AM
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Base timing cannot be correctly set unless the engine idle is at or slightly below spec: 800-850rpm and the TPS must be sending 'throttle closed' to the ECU. (TPS working correctly and correctly adjusted)
It is not enough that the terminals be jumped in the diagnostic connector, these other two conditions must be satisfied as well to get base timing.
Your base timing may well not be what you think it is.
It is not enough that the terminals be jumped in the diagnostic connector, these other two conditions must be satisfied as well to get base timing.
Your base timing may well not be what you think it is.
07-11-2017, 07:51 AM
#4
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Don't make assumptions, listen to millball, he really seems to know what he's talking about. there is a procedure for setting the TPS. and it could be reading slightly open with the throttle fully closed, why would that set a code? the computer just thinks your foot is still on the gas.
07-12-2017, 05:53 AM
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Base timing cannot be correctly set unless the engine idle is at or slightly below spec: 800-850rpm and the TPS must be sending 'throttle closed' to the ECU. (TPS working correctly and correctly adjusted)
It is not enough that the terminals be jumped in the diagnostic connector, these other two conditions must be satisfied as well to get base timing.
Your base timing may well not be what you think it is.
It is not enough that the terminals be jumped in the diagnostic connector, these other two conditions must be satisfied as well to get base timing.
Your base timing may well not be what you think it is.
07-12-2017, 07:44 AM
#7
Registered User
Base timing cannot be correctly set unless the engine idle is at or slightly below spec: 800-850rpm and the TPS must be sending 'throttle closed' to the ECU. (TPS working correctly and correctly adjusted)
It is not enough that the terminals be jumped in the diagnostic connector, these other two conditions must be satisfied as well to get base timing.
Your base timing may well not be what you think it is.
It is not enough that the terminals be jumped in the diagnostic connector, these other two conditions must be satisfied as well to get base timing.
Your base timing may well not be what you think it is.
Last edited by ksti; 07-12-2017 at 07:46 AM.
