Is My R33 Ecu Wrong?

[SeaNo180]

Ok Guys,

i have followed the tutorial for the Idle adjustment and they said that there is an idle adjustment screw on the ECU.

I have a series 2 R33 and i just checked my ecu and there isnt any adjustment screws?

According to this thread i have the correct ECU part number, just wanted to make sure.

I have uploaded a pic of the part number and ecu for your reference... Anyone with technical advice i would much appreciate it.

Thanks..

Edited July 7, 2014 by SeaNo180

[89CAL]

I've only ever adjusted the screw on the IAC/AAC valve to change idle

[dyl33]

I have a ecu from a 98' r33 gtst in front of me, It has no idle adjust screw that I can see

The top picture above, mine says Mec-r722 a1 0572.

Bottom picture says 23710 13u02

Mec-r722 a1 8129

Edited July 7, 2014 by dyl33

[SeaNo180]

Somethings up with the skyline and im trying to knuckle it out.

I get over 7psi and the thing splatters and feels like im being punched in the back of the head. Runs beautifully otherwise... hmmm

[89CAL]

Well....... it wouldnt be the idle screw on the ECU if it has one, which I dont think it should

Thought that was more a thing on RB30's and maybe RB20's. I dont remember my stock ECU ever having an idle screw, but that was a while ago

If your boosting over 7psi with stock ECU chances are its the famous R&R. The ECU assumes a problem because of the higher then normally expected airflow and it cuts the ECU in some cases (mine used to do this) In other cases it just adds a heap of fuel and timing and doesnt really cause higher boost to necessarily create significantly more power

[SeaNo180]

I understand the idle screw isnt causing my problem, however the car does idle erratically every blue moon so i figured id chase two problems at once.

It seems as though i do have the right ECU.

As for the famous R&R, i will lower my boost settings and see how i go.

Cheers for the replies buddy

[89CAL]

huting idle? Do you have an atmo venting bov?

Otherwise you may have some sort of minor boost leak somewhere.

[75coupe]

I find it interesting that the ecu would have an idle adjustment on it?

[defari]

Coil pack(s) are buggered, spark plugs aren't gapped correctly / or they are shot. Boost leak somewhere.

Edited July 7, 2014 by defari

[89CAL]

I find it interesting that the ecu would have an idle adjustment on it?

My old RB30 had the adjustment on the ECU. Also had one on the engine.