Before you do that, read the value again from multiecuscan, maybe it's just the app you use not accurate on this ecu?

cmosfxx said:

Before you do that, read the value again from multiecuscan, maybe it's just the app you use not accurate on this ecu?

Click to expand...

Yes I thought that also thanks but your values seem more realistic to me I think 18-20% at idle is far too much


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Yes it's not normal. 20% could cause rough idle(fast or not stable) and very high (possitive) fuel trims.

What's your idle rpm? ~670rpm is the normal for a starjet engine.

cmosfxx said:

Yes it's not normal. 20% could cause rough idle(fast or not stable) and very high (possitive) fuel trims.

What's your idle rpm? ~670rpm is the normal for a starjet engine.

Click to expand...

Yeah when it's warm it's around 680 I checked it today with snap in solus pro and the values were all fine. The problem with the car is poor throttle response and performance at low revs sometimes when you press the pedal nothing happens.

Test the pedal response % with the ignition on but engine off. Should be very quick (you can hear it also moving, there should be no pauses, lag etc)

If it's not, remove completely the intake valve unit from the manifold (4 hex screws plus 4 the ecu) and clean it thoroughly with a spray. Clean map too, it will be covered with oil and dirt.

Then, make a throttle re-learn from multiescuscan.

Yes I looked at the throttle response and will give it a clean when I get a minute. Still need to do timing belt 62000 miles at the minute wonder if it can effect anything if it's a bit old