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30th November 2019, 13:55 | #1 |
I really should get out more.......
Rover 75 connoisseur se v6 auto Join Date: May 2014
Location: Hull
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P0 300 code
Last couple of days have had hesitation at high revs under load - my diagnostic kit is giving a PO 300 code- it is very intermittent just done nearly 400 miles on motorway and B road in last 3 days and it has happened very slightly twice and quite bad hesitation once - rev counter is NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD- on when idling and no wavering -as it is multiple cylinders i assume it is more likely to be
1.Failing coil pack 2. Faulty spark plug/plug wiring 3. Fuel mix issue - EGR valve faulty ( mine is original so 16 years old) 4. Fuel pump - however as it is intermittent dont think this is the case. 5. As it is multiple i am assuming no cylinde\gasket issue.r Any other ideas /experiences welcome
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She came off the Longbridge Line on 20-05-2003 The Silver Machine was the 13th of 160 Rover 75's to come off the production line that day and is the 100th of 527 Starlight Silver Rover 75 2.5 V6 Connoisseur SE Auto saloons listed in the build records produced world wide. |
1st December 2019, 00:43 | #2 |
Posted a thing or two
Rover 75 1.8t Join Date: Oct 2015
Location: Edinburgh
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do you know what the Spark Plug Gap is set at ?
Factory setting is 1.0mm - best setting for a 1.8t is around 0.6 or 0.7 mm. Paul. |
1st December 2019, 14:56 | #3 |
This is my second home
Roverless + 1.7D Sportage Join Date: Aug 2014
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The leads can break down over time. Start with plugs, then leads, then coil packs if you don't have a specific fault (ie cheapest items first - process of elimination).
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Oil in my veins! |
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