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T56 swap rev limiter!

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Old Apr 16, 2017 | 04:38 PM
  #1  
Swapped7's Avatar
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Default T56 swap rev limiter!

2000 4.8 24x engine. Did a t56 manual trans swap and didn't hook up any wires. For some reason this ecu has some rev limiter at 4000 Rpm and won't let me rev past unless I go wot from idle. Could this be because my ecu thinks the car is in park? Any ideas or anyone that's seen this?
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Old Apr 17, 2017 | 04:11 AM
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stevieturbo's Avatar
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From: Norn Iron
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could well be, has the ecu been told the car is now manual ?

At the minute, with wiring/switches missing all it knows is there are faults.
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Old Apr 18, 2017 | 05:48 PM
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Nobody had this issue? Took ecu to tuner he changed every limiter to 6400 but it still cuts at exactly 4K Rpm every time. When I stomp this gas it goes thru and runs good all the way to the limiter (6400) but will not rev past 4K from slow rev
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Old Apr 19, 2017 | 02:59 PM
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From: KC KS
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Yes, you need a manual transmission tune and or vss. I had this problem on an older swap, can't remember which fixed it.
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