on February 1, 2016, 2:06 pm, in reply to "Jaguar / S Type - Poor cold starting / misfire symptom"
Remove the MAP sensor they sometimes block almost solid, it sits right on top of the throttle housing only takes a minute to check. Also we had a few of these that only show fault codes when the ecu is flashed with the latest software, usually egr related .
Cheers Mick