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xveganxcowboyx · 03-18-2006

You need a compression tester, it's quite easy, and explained in VFAQ.

I believe stock 6 bolt compression should be a little over 160. Service limit of 124.

Find out when the last tune up was done. Plugs, wires, air filter, fuel filter....

A less likely culprit, but something worth checking/cleaning would be a sticky throttle body. Mine was filthy when I took it off.

03-18-2006	#5
xveganxcowboyx Wanker Join Date: Nov 2005 Location: St Paul, MN Drives: 95 M3 Posts: 1,027	Re: "Lagging" when accelerating You need a compression tester, it's quite easy, and explained in VFAQ. I believe stock 6 bolt compression should be a little over 160. Service limit of 124. Find out when the last tune up was done. Plugs, wires, air filter, fuel filter.... A less likely culprit, but something worth checking/cleaning would be a sticky throttle body. Mine was filthy when I took it off.