Running rough and strong smell of petrol

[bunnykins]

my jeeps been running rough and there is a strong smell of petrol.

i have just changed 5 of the 6 spark plugs [ all 5 of the old ones were black - could not get to the one nearest the radiator ! ]

/ new distributor cap and rotor / and 5 new leads. afterall that its still running rough.

any jeep mehanics out there with ideas what needs attention ?

is it the cat lamda sensor or injectors ?

the RAC cleaned the distributor before i changed all the above and it seemed to go fine for 20 mins.

i also filled up £50 of petrol in wales coming home, could it be dirty petrol ?

thanks

[Dave69]

sounds like it's overfueling, maybe swap the lambda sensor near the cat and see what that does. post a question on the birtys website for a more constructed answer

[bunnykins]

i also did realised that i ran out of water in my coolant tank before this happened but did top it up.

[Bishops Finger]

Id put a post on Birtys....oh hang on Doh....

[cooter davenport]

cam sensor

[bunnykins]

got my jeep back today - 5 hours = labour 3 hours for the manifold and 2 for diagnostic.£270.00 i supplied the manifold.

not happy, it still seems rough and does not seem to be as quick or responsive as before, perhaps i need to give it time to run in ?

they carried out a compression test :
1=90psi
2=95psi
3=95psi
4=90psi
5=100psi
6=105psi
does this look ok ?

thks

[Bishops Finger]

Wait for the Docs response on Birtys...

[bunnykins]

thanks for all the feedback.

well i am not totally happy since my jeep came back from mansfield, as its not running as smooth as before it went in,
despite them saying i needed a new manifold and the sensor. they havent replied to my email or shown any interest in
helping me sort this out.....they were happy to take the money !

i replace the leads,distributor/rotor/plugs with all new. i have heard that some leads will not work as well as the oem
stuff, has anyone had this ? i feel like putting the old leads back to see if its that.

any ideas are welcomed.

[Frankie-Boy]

I'm not that conversant with Jeeps but the symptoms you describe seem to point to overfueling as already said, in the days when I used to run petrol engines, that would seem akin to driving with the choke on, ok when you first start up from cold but running very rich when warm, that would cause it to run badly and make the plugs black.

I don't even know if modern petrol engines have chokes on them, but if they have that's where I'd look.

Sorry about the ramblings of an old bloke  ;) and hope you get it sorted soon  :D

[Bishops Finger]

Just had problems with my TJ...thought it was sensor...garage advised non OEM leads were the cause

Runs Ok now..

[bunnykins]

Just had problems with my TJ...thought it was sensor...garage advised non OEM leads were the cause

Runs Ok now..

thanks, i'll find time to put the old leads back and see how it runs.