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Head Swap

Old Feb 16, 2014 | 02:27 PM
  #1  
Raul Vazquez's Avatar
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Question Head Swap

My daughter ask me if a non Vtech head will fit on her 94 EX Civic? (Vtech Engine) Help accepted!!
 
Old Feb 17, 2014 | 03:34 AM
  #2  
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From: DUB Caeser
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Yes, but I wouldn't suggest doing it.
 
Old Feb 17, 2014 | 05:23 AM
  #3  
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+1. The head will fit (remember non-VTEC needs to have an oil restrictor in the hole in the block, VTEC needs to not have the oil restrictor) and the engine will run, but the ECU will turn on the CEL and go into limp mode when it sees that there is no VTEC hardware. That can be resolved by replacing the ECU with one for a non-VTEC car.

Though I have seen something about reconfiguring OBD1 ECU's by changing resistors or diodes inside.
 

Last edited by mk378; Feb 17, 2014 at 05:25 AM.
Old Feb 20, 2014 | 02:55 AM
  #4  
Raul Vazquez's Avatar
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Default Head Swap

Thanks for the help.
 
Old Jan 31, 2020 | 02:00 PM
  #5  
Stanley Bony Aragon's Avatar
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Default head swap

hey guys,.. my ex head is no good, i was told to change it for a none ex none vtech so that way the P1259 code wont come on, i try all to fix it but nothing,.. so is it possible to change the vtech head for a none vtech and the ecu, or will i need more to it???
 

Last edited by cvcrcr99; Jan 31, 2020 at 03:09 PM.
Old Jan 31, 2020 | 03:10 PM
  #6  
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From: DUB Caeser
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Yes, the old red-font-will-provide-more-answers-in-a-6-year-old-thread routine.

VTEC...

If you had a VTEC head on the car previously with no issues, why would someone suggest to change it? You're best off creating your own thread about this, too.
 
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