Miss fire e34 535

[deryck1962]

Hi does anyone have a solution to this missfire. Someone played with the settings on my airflow meter, thus i had to get another one. I now have this missfire and i have changed the plugs x2 had it on the diagnotic machine and showed no faults. Timing perfect. I am now tomorrow going to change the injectors as i read on the bmw forum that if the computer picks up a bad missfire it will shut down the power to pulse the injector thus saving the engine from more damage. Please guys let me know what u think. Its a bmw e34 535 1991. All sensors are working fine. Tnks deryck

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[Ricky318i]

Hey, don't know what it might be except for ignition system and making sure the distributor is ok. :thinking:

I've also got a '91 535i and is interested to hear how this turns out! Let us know.

 

[deryck1962]

Will do tnks ricky

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[deryck1962]

Hi Ricky. Changed the injectors and 1x plug lead, running like a star now.

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[Ricky318i]

That's great!

I am considering doing my injectors as well.

Where did you get them and how much did they cost?

 

[deryck1962]

I actually got them free. Just cleaned them up with carburator cleaner and changed the rubber o rings. I could have used the old ones but had these already. Just make sure u have the same colour. I have a code tacho now showing on the on board computer and have to take it in to have it cleared as i used different coloured ones. Let u know tomorrow

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[Ricky318i]

How is the car running?

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[deryck1962]

Perfect. Not a misfire and is actually idling so smooth now. Fuel not bad for 535. Town. Havnt taken on the long road yet but will keep u informed. Still have to clear the code. Time issues

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[deryck1962]

Thought ill send pic of my e34 535

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[Ricky318i]

Ah your car is sweet man. I'll post some of mine.

I'm gonna clean my idle control valve tomorrow.

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