car shaking when accelerating

RideForeign · 10-14-2015, 08:54 AM

I've just done the valve cover gasket, 6 new ignition coils, & 5/6 new iridium laser cut plugs on my n52 and the car was working wonderfully for about a week until last night I started it and noticed that while accelerating it was shaking with hesitation and I got a check engine light.

Reason why I did 5/6 plugs was because ecs tuning screwed me on one plug and it was faulty I found this out when I was doing the tunenup and with the plug installed my car ran like a bag, changed it to the old one I had in and everything was good.

Anyone got an idea what is going on?

I heard the vanos motors can reset? Or the eccentric valve can reset.

Later on today a buddy is coming by with a scanner to check the check engine light and see what I get. I'll keep you guys posted but if you guys have any info or advice let me know.

Thanks!!!

Nick.B · 10-14-2015, 10:14 AM

Probably a misfire, related to one of the coils or likely the last of the old plugs. I doubt ECS knew the one plug was bad, so it may be a bit of a stretch to say they screwed you.

Edit: Maybe the breather hose at the back of the VC wasn't firmly connected and popped off. I missed connecting mine when I did the VCG and checked all sorts of things when it ran like crap before finally noticing that hose was off.

RideForeign · 10-14-2015, 10:50 AM

Thanks man. I hope I can figure it out today and see what's going on. Cars idling doesnt drop under 500 btw

leungsta · 10-16-2015, 10:37 PM

The engine shakes or is it the wheels?

10-14-2015, 08:54 AM	#1
RideForeign Private 2 Rep 76 Posts Drives: 328xi Join Date: May 2014 Location: ontario iTrader: (0)	car shaking when accelerating I've just done the valve cover gasket, 6 new ignition coils, & 5/6 new iridium laser cut plugs on my n52 and the car was working wonderfully for about a week until last night I started it and noticed that while accelerating it was shaking with hesitation and I got a check engine light. Reason why I did 5/6 plugs was because ecs tuning screwed me on one plug and it was faulty I found this out when I was doing the tunenup and with the plug installed my car ran like a bag, changed it to the old one I had in and everything was good. Anyone got an idea what is going on? I heard the vanos motors can reset? Or the eccentric valve can reset. Later on today a buddy is coming by with a scanner to check the check engine light and see what I get. I'll keep you guys posted but if you guys have any info or advice let me know. Thanks!!!
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10-14-2015, 10:14 AM	#2
Nick.B Second Lieutenant 57 Rep 274 Posts Drives: 335i, 330i, 335xi, 6MT sport Join Date: May 2014 Location: Calgary, Canada iTrader: (3) Garage List 2011 335i [0.00] 2006 E90 330i [0.00]	Probably a misfire, related to one of the coils or likely the last of the old plugs. I doubt ECS knew the one plug was bad, so it may be a bit of a stretch to say they screwed you. Edit: Maybe the breather hose at the back of the VC wasn't firmly connected and popped off. I missed connecting mine when I did the VCG and checked all sorts of things when it ran like crap before finally noticing that hose was off.
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10-14-2015, 10:50 AM	#3
RideForeign Private 2 Rep 76 Posts Drives: 328xi Join Date: May 2014 Location: ontario iTrader: (0)	Thanks man. I hope I can figure it out today and see what's going on. Cars idling doesnt drop under 500 btw
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10-16-2015, 10:37 PM	#4
leungsta Major 104 Rep 1,390 Posts Drives: R8 V10 / Cayenne GTS / Model 3 Join Date: May 2011 Location: Montreal, Canada iTrader: (19)	The engine shakes or is it the wheels?
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