I have an XR3i, when starting the car it starts turn of the key fine and seems idle right and revs freely in neutral but once i drive off its holding back at times and revs bog down unable to get past 2500rpm.It seems to be happening at around 60mph If i then turn engine off and restart it works as it should, any ideas?
I have replace the follow..
HT leads
Coil pack
plugs
Air temp sensor
Tried a different MAP Sensor and all of above made no difference.
TIA

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