Car ( Alto 2004 ) had recently been off-road following a collision . I have got it back on the road after repairing bodywork damage . Car had been off road for around 11 Weeks .
Car is now looking good, since repairing I have taken it for two test drives . THe first was fine , no serious issue for around 5 miles . Today however after around 8 miles of test driving , the car started misfiring and struggling around 2K revs when in any gear
My immediate thought was that this was a coil / spark issue . However after bringing the car home and sitting on drive , it revs comfortably in neutral - No misfiring . Why would it misfire only when accelerating in gear ? Would could it be a ignition/coil/spark issue if revving is fine in neutral ?
I am thinking maybe the petrol has caused some clogging in carb or perhaps something else . ANy thoughts or suggestions ?
If after replacing the plugs, scan and if you still have the #4 mis-fire, swap #4 coil with any other cylinder coil, run it, re-scan and see if the code follows the coil. IF so, you have found a bad coil.
OK after swapping coils there were still some obvious misfiring , however the Car needed a drive in order for the car Computer to trigger a confirmed error ( still P304) , it took around 2 miles for the error to kick in after an initial unconfirmed/unverified random errors with a flashing engine light
So I changed the spark , now the car is purring again with all four cylinders . Thanks for the help guys .
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.