Spark plug Bosch or Motorcraft

Replaced spark plugs with genuine VW Bosch units

Belated follow up. I replaced the plug at the distributer as the signal from the hall sender was intermittent. Brand new Bosch plugs were had for cheap.

So I grab a new ignition coil, and a full set (4) of spark plugs. The Pre-gapped BOSCH Iridium plugs were the same price as OEM platinum, so I figured that's fine for me.

After pulling the plugs, Cylinder 1 plug was definitely eroded. The other 3 plugs looked fine, but I might as well replace the lot. The new Ignition Coil went into Cylinder 1 as well, and I started it up.

Check engine light went off, starts up fine, drives fine, idles fine.

Yeah, I'd rather use some cheap BOSCH SUPERS or other $2 copper plug than any Autolite.

Sometimes you just have to try a few sets. I have a '97 Jetta which had NGK plugs in it for close to 4 years. I went through two sets of NGK plugs and couldn't get the car to run. I switched to Bosch and it started right up and ran fine.

Since Iridium is tough, and there is platinum at the tip of the movable electrode, I bought Bosch Iridium.

Been using bkr7e since 2007. They are ok, but not optimal in any way. Im now running Bosch F5DPOR. \"OEM Audi RS2\" They are gap free, and runs perfect at least at 15psi in my car.

Bosch is making crappy plugs these days.

Put the correct spark plugs in there (NGK BKUR6ET-10 for AEG), throw those Bosch +4 turds in the bin where they belong.

Bought Bosch platinum's and red bremi wires. swap everything all out, the misfires alot worse.