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CPR Issue

Posted: Thu Oct 18, 2018 3:59 am
by Tjung
I do not whether this is an issue with the Hondata CPR or something else, but after I have finished install the CPR, the low RPM (between 1000 - 2000), the car runs jerky, not smooth. My car is Honda Accord 94 with swapped engine to H22A, and the ecu is P28 with Hondata S300 V2.

Re: CPR Issue

Posted: Thu Oct 18, 2018 10:43 am
by Spunkster
Are you using resistor or non-resistor type spark plugs?

Re: CPR Issue

Posted: Fri Oct 19, 2018 12:02 am
by Tjung
I am using resistor spark plugs (NGK Iriway8). I installed CPR at the same time I installed turbo. If I step and hold the acceleration pedal and maintain the rpm in between 1000 - 2000, the car runs jerky (shaking), but if I step more above 2000, it runs fine.

Re: CPR Issue

Posted: Fri Oct 19, 2018 9:16 am
by Spunkster
What happens if you put the distributor back to stock?

Re: CPR Issue

Posted: Mon Oct 22, 2018 3:02 am
by Tjung
The issue disappear. First I thought the TPS is broken, but it is not.

Re: CPR Issue

Posted: Mon Oct 22, 2018 10:49 am
by Spunkster
Is this an OEM or aftermarket distributor?

Re: CPR Issue

Posted: Tue Oct 23, 2018 1:28 am
by Tjung
OEM distributor

Re: CPR Issue

Posted: Tue Oct 23, 2018 9:33 am
by Spunkster
Try with a different ECU if you can. We have seen some ECUs have issues. You must remember that these ECU's are at least 25 years old.