Bit of background info.
My high pressure fuel line (the metal one to the pump on the engine block) split last month. God only knows how! Anyway, had to remove the inlet manifold etc to replace it.
A week later, my car started to get random misfires on start up. But it only last for 30 seconds till the idle speed settles. The engine shakes a little and the car makes a weird farting noise! Almost sounds like a hole in exhaust. After its idled though, there are zero issues and no symptoms at all.
Checked the plugs and they all look fine. I replaced the air filter, run injector cleaner and changed the engine temp sensor so far. Also cleaned the throttle body. Replaced the crankcase breathers. My coolant gauge seems to take about 20mins to get up to temp, but can't see how a dodgy thermostat could cause misfires. Can't find any vacuum leaks anywhere. Had the HG tested via the coolant bottle test, and oil is clean. And no engine management light showing.
So hard to pin point as it only does it during startup and until the revs settle! WTF is it!?!?!? Drives perfect still
Would a coil pack cause issues just on startup???
Did a quick video so you guys/girls can hear the issue for yourselves.
All help appreciated! Pulling my hair out.
My high pressure fuel line (the metal one to the pump on the engine block) split last month. God only knows how! Anyway, had to remove the inlet manifold etc to replace it.
A week later, my car started to get random misfires on start up. But it only last for 30 seconds till the idle speed settles. The engine shakes a little and the car makes a weird farting noise! Almost sounds like a hole in exhaust. After its idled though, there are zero issues and no symptoms at all.
Checked the plugs and they all look fine. I replaced the air filter, run injector cleaner and changed the engine temp sensor so far. Also cleaned the throttle body. Replaced the crankcase breathers. My coolant gauge seems to take about 20mins to get up to temp, but can't see how a dodgy thermostat could cause misfires. Can't find any vacuum leaks anywhere. Had the HG tested via the coolant bottle test, and oil is clean. And no engine management light showing.
So hard to pin point as it only does it during startup and until the revs settle! WTF is it!?!?!? Drives perfect still
Would a coil pack cause issues just on startup???
Did a quick video so you guys/girls can hear the issue for yourselves.
All help appreciated! Pulling my hair out.
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Can someone point me in the direction of the part code etc?
