KitsonRis
ClioSport Club Member
Having issues with the car running on three cyclinders, also idles like a pig.
Started with a constant EML Saturday morning, which the OBD reader said "Random/Multiple Cylinder Misfire Detected" (I was expecting a crank sensor issue as it hasn't been starting). Car ran fine on all 4 cylinders. Checked all plugs etc which were fine. Put car back together and cleared the code to see if it was a freak thing or something is wrong. Left it idling for about 20mins and it was fine, no EML. Then I drove it up the road and then when I pulled off from a set of lights (less than a mile from setting off) it bogged down and it turned into a three cylinder. The EML alternates between constant and flashing. I got annoyed so left the car on my brother's drive and went to the pub! I haven't attached the OBD reader to it since, it may tell me what cylinder this time it is missing on. I was going to blindly change the coil pack and HT leads ad see if this is the problem.
But I was doing a bit of research and came across this thread:
http://www.cliosport.net/threads/172-cup-misfire-and-blowing-exhaust.720254/
I also have a blowing exhaust, I know I need to get it sorted, I wanted to get the car running before I look at this. The blowing noise appears to come from the front of the car, possibly before the cat. I had a quick look when I noticed this the other week and the exhaust clamp that holds the cat to the rear section of the exhaust isn't doing anything (tried to do it up but its like the nuts have corroded and I was in a rush and didn't have time to properly fiddle). But there is not play/movement in the cat or the back section, appear to be stuck together.
The argument seems plausable that the lambda sensor not working properly so it is causing the wrong fueling to create a misfire.
Do people agree this could be the cause? Or is it trash and I should just replace the coil pack and HT leads anyway? The car was fine the other week when I drove it about 500miles fround trip to North Wales, bar a few not starting occasions (TDC sensor I think needs chagning). I think the exhaust was blowing during this trip, I didn't notice it until I got home, this may have cuased some damaged to the lambda??
Started with a constant EML Saturday morning, which the OBD reader said "Random/Multiple Cylinder Misfire Detected" (I was expecting a crank sensor issue as it hasn't been starting). Car ran fine on all 4 cylinders. Checked all plugs etc which were fine. Put car back together and cleared the code to see if it was a freak thing or something is wrong. Left it idling for about 20mins and it was fine, no EML. Then I drove it up the road and then when I pulled off from a set of lights (less than a mile from setting off) it bogged down and it turned into a three cylinder. The EML alternates between constant and flashing. I got annoyed so left the car on my brother's drive and went to the pub! I haven't attached the OBD reader to it since, it may tell me what cylinder this time it is missing on. I was going to blindly change the coil pack and HT leads ad see if this is the problem.
But I was doing a bit of research and came across this thread:
http://www.cliosport.net/threads/172-cup-misfire-and-blowing-exhaust.720254/
I also have a blowing exhaust, I know I need to get it sorted, I wanted to get the car running before I look at this. The blowing noise appears to come from the front of the car, possibly before the cat. I had a quick look when I noticed this the other week and the exhaust clamp that holds the cat to the rear section of the exhaust isn't doing anything (tried to do it up but its like the nuts have corroded and I was in a rush and didn't have time to properly fiddle). But there is not play/movement in the cat or the back section, appear to be stuck together.
The argument seems plausable that the lambda sensor not working properly so it is causing the wrong fueling to create a misfire.
Do people agree this could be the cause? Or is it trash and I should just replace the coil pack and HT leads anyway? The car was fine the other week when I drove it about 500miles fround trip to North Wales, bar a few not starting occasions (TDC sensor I think needs chagning). I think the exhaust was blowing during this trip, I didn't notice it until I got home, this may have cuased some damaged to the lambda??
