Hondata

Posted: **Mon Dec 15, 2008 3:17 pm**

I have JDM P30 running H22A7 from Accord Type-R.

Just after start up RPM is significantly lower than specified in the calibration during warm-up for about a minute.

Another issue is with idle: I can't set idle RPM lower than 850. This must be a problem with ECU. Because if I plug EDM P30 ECU with the same calibration I can set any RPM. I've played with IACV duty cycle - did not help. If I unplug IACV plug the engine idles at 500-600 RPM.

Posted: **Mon Dec 15, 2008 3:21 pm**

Is your IACV 2 or 3 wire?

Posted: **Mon Dec 15, 2008 3:26 pm**

Spunkster wrote:Is your IACV 2 or 3 wire?

Originally it had 3-wire IACV but I put a 2-wire one.

Posted: **Tue Dec 16, 2008 10:16 am**

If it is working correctly with your conversion and a different ecu with the s300, then you may have a damaged ecu.

Posted: **Thu Dec 18, 2008 11:02 am**

Spunkster wrote:If it is working correctly with your conversion and a different ecu with the s300, then you may have a damaged ecu.

I doubt that. A friend of mine has the same problem (high idle) with JDM p30.

As for low RPM on warm-up - could absence of FITV be the cause? If yes why Hondata does not have an option to compensate?

Hondata

Cold start and idle issues on H22A

Cold start and idle issues on H22A