D15b p28 Ecu codes 3(map) and 21(vtec) help!!
07-31-2018, 05:54 PM
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D15b p28 Ecu codes 3(map) and 21(vtec) help!!
just installed a jdm d15b into an eg using a p28 ecu.
getting map and v tec codes (hard codes)
anyone seen this post swap? Is there something I should know?
getting map and v tec codes (hard codes)
anyone seen this post swap? Is there something I should know?
07-31-2018, 06:01 PM
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Re: D15b p28 Ecu codes 3(map) and 21(vtec) help!!
Using a vtec pcm and d16z6 harness.
everything is plugged in where it should be.
Used the z6 intake on the d15b obd 2 long block.
dobu need to switch pins or something?
everything is plugged in where it should be.
Used the z6 intake on the d15b obd 2 long block.
dobu need to switch pins or something?
07-31-2018, 08:27 PM
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Re: D15b p28 Ecu codes 3(map) and 21(vtec) help!!
What year is the EG chassis ??? Did it have an original MAP sensor mounted on the firewall or on the top of the throttle body ???
07-31-2018, 08:31 PM
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Re: D15b p28 Ecu codes 3(map) and 21(vtec) help!!
It’s a 95 chassis sedan.
Had the z6 in it that I removed.
bought a obd2 d15b, with y7 trans. Installed the unit,
but found out had auto trans p28, so put a manual p28 in, got rid of the lock up code.
My codes 3 and 21 are hard codes, weren’t there with the z6 in it previously.
Had the z6 in it that I removed.
bought a obd2 d15b, with y7 trans. Installed the unit,
but found out had auto trans p28, so put a manual p28 in, got rid of the lock up code.
My codes 3 and 21 are hard codes, weren’t there with the z6 in it previously.
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07-31-2018, 08:38 PM
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Re: D15b p28 Ecu codes 3(map) and 21(vtec) help!!
Didn’t run the vin, customers car.
didnt have codes precook though. But all of my grounds are clean and properly placed.
Noticed fuel gauge is acting erratically as well though
didnt have codes precook though. But all of my grounds are clean and properly placed.
Noticed fuel gauge is acting erratically as well though
08-19-2018, 08:18 PM
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Re: D15b p28 Ecu codes 3(map) and 21(vtec) help!!
For those who took the time to reply. Thank you.
Turned out the chassis harness was for a 1.5 non vtec.
but the engine was a d16z6 with proper engine harness.
Quite misleading.
pcm was a p28 auto trans
not equipped with vtec (3 pins missing from pcm to engine)
hardwired a p28 manual trans to solenoid. All was solved. Runs great.
Be aware of shotty work, and plan on tracing things back to the source. The d15b is a rather easy swap to do, but without proper wiring, won’t work. Wanted to close this thread whilst I had time.
thank you all for your help.
Turned out the chassis harness was for a 1.5 non vtec.
but the engine was a d16z6 with proper engine harness.
Quite misleading.
pcm was a p28 auto trans
not equipped with vtec (3 pins missing from pcm to engine)
hardwired a p28 manual trans to solenoid. All was solved. Runs great.
Be aware of shotty work, and plan on tracing things back to the source. The d15b is a rather easy swap to do, but without proper wiring, won’t work. Wanted to close this thread whilst I had time.
thank you all for your help.
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