misfire

ondering if anyone can help in at my wits end. Had my car just over a year, from the moment I bought it it’s had a really rough idle. It was a leaner car and now a first time driver car however my partner took it on the motorway. It judders violently but only doesn’t intermittently. I have...

Hello guys! I'm proud owner Seat Leon Cupra 1P with tuned BWJ under hood. After rebuilt of engine (new pistons, forged rods, new rods bearing, renewed head etc.) engine started to misfire on cyl. 3 (about 14 missfires per minute) and cyl. 4 (about 2 misfires per minute). It's only misfiring on...

I’ve got a 2010 Ibiza cupra 1.4tsi that has a cylinder 1 misfire changed spark plugs and checked coils and nothing fixed it any ideas ? thanks

Hello everyone, I just got 1 more issue with my car, and that's the fueltrims.. I have a leon Mk1 1.8 20v (APG engine), NA My STFT only will go up when i'm on throttle, but because of that, if i am driving at cruise speeds, the LTFT slowly will take over and it goes up to 20% I doubt i have...

o recently bought a 11/12 plate BOC with the CAVE engine, 60k Has a miss fire at higher revs occasionally, I’ve changed the plugs the NGK ones gapped at 0.6. The old plugs (pictured) from 1-4 L-R any ideas on them? I done a comp test and they were all around 150-154 psi. Not sure what to do...

Hi all. My mk2 leon Cupra has a little judder misfire on idle - no rev change or codes. It shakes the car slightly - no performance loss when driving Its been doing it for the past 10k miles and its not really causing a problem just doing my head in Things that haven't worked... - All 4 fuel...

Hi Guys:wave: I am having some problems with a rough misfire sort of idle (Seat Cupra 280 DSG 2014) So first thing I did was ran codes on the car, 2 errors were stores and but they did not chuck an EML light. - P006800 MAP / MAF - Throttle Position Correlation - P227900 Passive/Abiogenesis...

Hi, Need some help diagnosing a Cylinder 2 misfire on a seat leon cupra 2010, tried the usual checking leads with multi-meter, swapping spark plugs and coils. Checked for vacuum leaks but couldn't see any, was a small amount of oil on spark plugs but nothing major, fitted a new valve cover...

Hi all, My 2008 Leon 1.6 petrol (1p1) engine code BSE has been misfiring on idle for the last few days. When on higher revs and normal driving it seems to run fine. On idle it knocks, misfires and generally sounds terrible. Idle is around 650rpm which is lower than usual. When the engine is...

Hello everyone, I brought my 2011 Bocanegra in February 2018 and all seemed well for the first 4 months the car is on finance and brought from a respectable dealer. After the first 5 months when I was returning from a trip away in the car I noticed the car seemed to shudder all of a sudden...

Hi everyone, I have owned my Ibiza cupra since about December but started experiencing problems with the car in January. The car would misfire very 20 miles or so. As it wasn’t a huge problem I carried on driving and eventually bought myself a code reader that said cylinder 3 misfire. Cleaned...

Have had my airflow metre replaced and also lamba sensor 2. Still continuing to misfire at 5000-6000 rpm. Think it is also over fueling. any ideas to what the problem could be? thanks

Hi guys, i have a 1996 seat cordoba clx with a 1.6 engine. today it started a random missfire, it doesnt happen all the time but when it does it usualy happens up to about 2250 rpm and then dissapeers, it also will miss when just on idle but again not all the time. I have changed the leads...

ive got a 51 plate 1.8 20v turbo cupra and been havin a few problems with it. first of all it felt like the turbo was holding back this wasnt so much of a problem its now got a misfire when the turbo spools up, fine wen not on boost but bad wen boosting. sometimes it makes the engine...

Evening guys, was driving my remapped mk1 Leon 150 tdi at around 60mph in 6th gear when suddenly the engine died. Within a second it revved back up. It did this several times untill the engine just died and the car juddered to a stop. Whilst this was going on the dashboard lights was like...

Hi folks I need some help , got big jobs coming up on my tdi sport cam belt/ service suspension etc so big bucks !!!!!! However iv got a slight problem when the car is idling when fully warm? It judders and shakes the car , I know lots of people have similar symptoms . Its not the maf as I...

Hi Everyone, Our 2002 TDi 115bhp is suffering from a misfire around 1500rpm, particularly when under quite light load/gentle acceleration. It seems to be getting worse, and wasn't improved after the recent major (incl. cambelt) service at 80,000miles. Any ideas/suggestions gratefully...

Okay, so driving up the road earlier (LC), car starts to judder occasionally, then gets progressivly worse. EML starts flashing. Luckily i had my computer in the car, the codes it read were P0303 - Missfire in Cyl 3 So i cleared it, still had the missfire mind.... Drove home later, car was...

My cordy has been misfiring occasionally whilst idling, and sometimes it will hesitate / cut out when setting off on a hill. I think it is losing pressure on the fuel system, just wondering if any one else has had this problem, and if so is as simple as a new gasket on the manifold? Also the...

I have recently bought a 2005 Leon Cupra R and it appears to have a misfire. The car has only done 25k and appears to have been well looked after but when you accelerate it seems to have a 'jerky' pull through the rev range...this is much worse when it is cold and can sometimes feel like it...