Idle

[lporter]

CRX vtec British spec
P28 ecu and S300
OBD0
B16A1
4-1 manifold
Jenvey 45mm ITB with colvern tps (rescaled to 0-60%)
390cc/min ACCEL injectors (high impedence) @ 43.5 PSI
Resistor box removed and shorted out
Webcon fuel regulator
IACV Disconnected
*Car ran great with hondata and header before ITB install.

The engine idles fine when warming up but when warm by only touching the throttle it surges up to 2100 rpm and 950 Can you help please?

I have entered the injectors as 390 in the box should this be recalculated as I do not know what presure the stock 240cc/min injectors flow rate was calculated with.

I am using the map ITBLS base map

I can supply a datalog if needed.

[Spunkster]

Please post your datalog and calibration.

[lporter]

I did not have the butterflies correctly seated.

Can you give any advise on the injector pressure question in the post please.

[Spunkster]

Until you put it on the dyno it is impossible to tell you exactly what you will need to change. The injector size is designed to give you a starting point to begin making changes.