Starts and idles fine but sluggish when you try to accelerate. Basically sounds retarded. No fault codes, fuel pressure ok, exhaust not blocked, cam and ignition timing ok plugs ok. Gas readings ok at idle but don't seem to go rich when you blip the throttle. Checked TPS and AFM outputs and injector duration increases to about 8ms when you accelerate.

You can drive it but it just ain't quite right.

Any ideas?

Dick