Weird immobilizer problem

K-Series Programmable ECU installation questions / support issues
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mdoyle
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Joined: Wed Apr 06, 2005 12:53 pm

Weird immobilizer problem

Post by mdoyle »

I first got K Pro 6 months ago on my stock PNF ECU. The car ran perfect, I was able to leave the immobilizer on with no problems.

I later put a K20A2 cylinder head on my A3 block, ran the K20A2 CAI kal with the immobilizer on, still no problems.

This past week I swapped in a K20A, uploaded the K20A2 ITR Cams JRRH 310cc kal and it wouldn't start. I turned off the immobilizer and now it starts and runs fine.

All three different engines used the same ECU, both times before I was able to leave the immobilizer on, now that I have K20A I have to turn it off, any ideas?
hnx676
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Location: Singapore

Re: Weird immobilizer problem

Post by hnx676 »

As far as I know, K20A does not have any immobilizer at the first place...
mdoyle wrote:I first got K Pro 6 months ago on my stock PNF ECU. The car ran perfect, I was able to leave the immobilizer on with no problems.

I later put a K20A2 cylinder head on my A3 block, ran the K20A2 CAI kal with the immobilizer on, still no problems.

This past week I swapped in a K20A, uploaded the K20A2 ITR Cams JRRH 310cc kal and it wouldn't start. I turned off the immobilizer and now it starts and runs fine.

All three different engines used the same ECU, both times before I was able to leave the immobilizer on, now that I have K20A I have to turn it off, any ideas?
2002 Honda Integra Type R
JDM K20A with GruppaM Ram Air Intake, Spoon TB with coolant bypass, Hondata IMG, Unorthodox pulleys (crank, alt, PS), Denso IK22, ES MM, K-Pro
mdoyle
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Joined: Wed Apr 06, 2005 12:53 pm

Re: Weird immobilizer problem

Post by mdoyle »

hnx676 wrote:As far as I know, K20A does not have any immobilizer at the first place...
The K20A ECU doesn't have an immobilizer, but my car does. I also used my stock wiring harness.
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Spunkster
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Post by Spunkster »

Try clearing security and uploading a new calibration.
mdoyle
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Post by mdoyle »

My kal has already seen the dyno, and a lot of road tuning, should I just clear the security then upload that, or try a different kal altogether?
mdoyle
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Post by mdoyle »

Spunkster wrote:Try clearing security and uploading a new calibration.
Didn't work.
mdoyle
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Post by mdoyle »

b-u-m-p
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Hondata
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Post by Hondata »

The K20A ECU does not support an immobilizer, so the immobilizer must be disabled in the calibration.
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mdoyle
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Post by mdoyle »

Hondata wrote:The K20A ECU does not support an immobilizer, so the immobilizer must be disabled in the calibration.
I'm running the K20A2 JRRH 310cc calibration though.

Another local EP3 owner is having the same problem as me, only he is running the stock K24A2 calibration.
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Spunkster
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Post by Spunkster »

What is the code from the side of your ecu?
mdoyle
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Post by mdoyle »

I'm not sure, i'll have to go out and check.

If it's PNF A12 or A13 though, that update didn't fix my problem.
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