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Okay so. Swapped a spare injector into cylinder 4. Still idles like crap. Waited the near 5 minutes for it to throw its fault and again, cylinder 4 fault flashing eml. This is making me think the leads or coil are faulty? Anyone?
Okay. Brilliant news. After 10 mins of idling, the eml starts flashing and I've had cylinder 4 misfire. I'll do the usual checks once its cooled down and report back.
Morning all. At the car. With the ignition on but engine off, I've cleared all the faults. Now cant get the eml light back on 😂. Its still not idling right. Even more lumpy than usual. I'm going to get the sparks out, clean them up and go from there. At least I can get it MOTd now lol
I've heard good things about the uprated anti-roll bar. Have you considered the basics such as new tyres and or brakes? I very much underestimated the value of these!
I wish it did show me which cylinder but alas I am here to make educated guesses.
Expect an update this evening.
See below for the spark plugs. They're in order. Spot cylinder 3!
Unfortunately my obd scanner just gives me a random cylinder misfire. So it doesn't tell me definitively which cylinder is misfiring. I assumed it was 3 as that tends to be the one that always goes. Also, it was the one with the nasty spark plug which obviously says poor ignition
New plugs arriving soon. Advice on cleaning the old ones?
I'm pretty sure I have trapped a lead as the inlet manifold is a tad tricky to line up and defo wouldn't bolt down if I had! But I double check!
So, from what you've said, it's either gonna be a blocked injector or coils or leads?
Flow test might give us more evidence to a blockage but if not, it's the other two?
For science sake, I'll be testing the injector flow tonight.
I'm resentful to be throwing a bunch of parts at my car when, once isolated, I can just change 1 part and then use the other money for other upgrades or fixes
Yeah that's a fair comment. Mine tends to throw its code about 10 seconds in which made me think more that it was a blockage or the injector is dead altogether. I guess we will see when I do the crank test!
Well that could be our entire issue here. Fault injector initially and the dirty spark plug could still be causing a misfire. New plugs on the way so I'll give that a switch when they arrive too!
That was my thinking. I haven't researched those specific ht leads but why change from the oem ones? Just says to me that someones trying to cut corners
I've checked the resistance against all the injectors and they're all showing between 14 and 15 ohms so no issue there. My only thought if it was blocked?
For sure. £28 is the best option. Leads and the coil pack are both at least £50. I'll give that a test and see how we go. If they all spray fine, we know it's one of the other two
So, just for clarification, I'm looking for an equal spray pattern. Should be a similar volume to the rest and not squirting..more spraying (pun intended). Is that right?
The issue is they're all used. I bought a rail with injectors about 6 months ago to try and cure this. Obviously it didnt work. My thinking is that it's not injector related. I changed all 4 6 months ago which didnt do a lot. The coil pack and leads haven't changed but again, that's process of...
Well that is a good point. Perhaps I'm wrong but judging by the state of 1 of the spark plugs, I assumed it to be cylinder 3. So that's the injector I changed.
Okay. Update. I swapped the injector for another one I had (used). Reassembled the inlet manifold etc etc. Started up fine. After idling for a bit, I checked the fault codes and it's still showing the fault code. Still feels like its misfiring too.
Any other suggestions?