Did I make a mistake? (archive)

When I bought my 88 325is a short time ago, I made a few modifications that I thought would enhance the car. I installed 8mm performance wires, Bosch +4 platinum plugs, K&N cone filter(powerflow kit from Bavarian), and a Jim C chip.
My idle is now a bit lower and not steady like it was prior to the replacements. Could this be related to the chip or is it a plug problem? I've heard, after the fact, that platinum plugs are not the best choice for our cars.

The idle fluctuation is not severe, but just enough to make me wonder why..... Any opinions before I go to the store and purchase new "regular" Bosch plugs???

Aaron
88 325is

Follow Ups:

could be your chip.have you tested without it? Leave it 2 Bimmer 23:35 1/21/2001 (0)
Re: Did I make a mistake? Paul 16:50 1/21/2001 (0)
Re: plugs... D Prime 16:40 1/21/2001 (2)
- Nough said, plugs it will be! Aaron 17:49 1/21/2001 (1)
  - I disagree. Neal 20:12 1/21/2001 (0)
Re: It's the Jim C. Luke 14:31 1/21/2001 (1)
- But it did wonders for my M3?!?.. Aaron 15:08 1/21/2001 (0)

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