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*** H22a4 Motor with a jdm p13 ecu... cel 21, but vtec still works ***

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Old May 11, 2009 | 10:07 PM
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stRodda's Avatar
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Default *** H22a4 Motor with a jdm p13 ecu... cel 21, but vtec still works ***

is that possible?

i believe 21 has something to do with the vtec solenoid. but if thats throwing a code, how is it possible that vtec still works?
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Old May 11, 2009 | 10:41 PM
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A_ALCHAAR's Avatar
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Default Re: *** H22a4 Motor with a jdm p13 ecu... cel 21, but vtec still works ***

If its OBDII then it is possible that the solenoid stopped working at some point. When that occurs, the computer will store that code even if it only happened once. Just clear your codes and see if it comes back.
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Old May 11, 2009 | 11:15 PM
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Default Re: *** H22a4 Motor with a jdm p13 ecu... cel 21, but vtec still works ***

the car is wired obd1. its an obd1 jdm p13. would the fact that the motor was from an obd2 car originally matter?
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Old May 12, 2009 | 11:21 AM
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Default Re: *** H22a4 Motor with a jdm p13 ecu... cel 21, but vtec still works ***

nobody?

if the solenoid is acting goofy, is it possible for vtec to still engage?

if its not supposed to work, what could be the problem that is allowing it to work?
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