Engine shaking at idle.

[NobleRogue]

If I'm not mistaken. Yes The ECU is trying to put the Idle where it should be. This cars Idle speed is supposed to be between 800 and 900 rpm when at operating temp. When messing with the Idle be sure that the engine is at operating temp. Drive it around the block a few times. Here isa video on how to do an Idle reset. www.youtube.com/watch?v=PVi2uaxAwnU. Use only the first 3 minuets of this next video for checking the TPS and making sure it is working and set properly. When it gets to adjusting the Idle he messes up. www.youtube.com/watch?v=nRGmB9Vbct0

[— Madaboutmx5s —]

Thanks for the info and links. I had a play around today with the idle base reset. When I bridge the GND and TEN revs increase. I've adjusted the idle adjuster screw anti clockwise (not fully) and the revs have increased but I cannot get it to match the ambient idle (but it's nearer). I've noticed doing this the engine now shakes less but still sounds a bit lumpy from the exhaust. As mentioned I've checked and replaced ecu, cas, engine mounts, wires, plugs. I haven't had a chance to drive it since the change yet but may adjust further if I can but found then whilst the idle screw turned after a point it didn't seem to adjust revs higher.