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Continued from above.... (archive)

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Posted by Thomas Redifer on October 17, 2001 at 09:56:24:

In Reply to: Re: Are Bosh+4's a hotter plug than the F7LDCR posted by Thomas Redifer on October 17, 2001 at 02:21:25:

My Jetta uses NGK- BKR5EK plugs stock. When I switched to the Platinum +4 plugs the engine ran well for a few days. It soon began to ping and even stall at low RPM. I couldn't believe that the problem was related to the plugs, but the guys onthe VW forum kept telling me that the Platinum plugs had screwed up their engines too. Finally I replaced the platinums with stock NGK plugs and the car has run great ever since. I took advantage of the money back offer from Bosch and I recieved all of my cash back.

The stock (BMW LOGO) plugs in my 1994 530i are
NGK BKR6EKU, they have been working great so I will stick with them.

I had the same problem in my 1997 VW Jetta. I switched the plugs and it cleared right up

Also what about the NGK BKR6EK.
The reason I ask is because I have a pinging problem with my '95 525 touring when accelerating from a stop. I've de-carbed the engine and run several bottles of injector cleaner. It is getting better. One of the things I did however, when I first started getting the problem was change the plugs. It looked like they were still original (bought car at 45K and it now has 50K). I put the Bosh+4's in even though about 1/2 the people here don't like them.
Since the problem is getting better, I'm wondering now if the only remaining thing that could be causing detonation is the plugs themselves.
I've not yet had a chance to take the car on a good long trip since the pinging started. That may fix it by itself. Hopefully in a couple of weeks I'll be able to take it on a 200-300 mile trip.

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