ssaunders 199 Posted October 28, 2011 Report Share Posted October 28, 2011 Hi, just had new 263 cams fitted and now have iffy running motor.Symptoms are below 1500 rpm occasional cough, normally low gear and need to accelerate hard from 1k to get it to do it. other is what seems like over run, accelerate and lift off it has trouble dropping revs, takes a couple of seconds to drop to about 800, not the usual 650-700. Have cleaned throttle body, vag com shows no errors and tps reset. Does it take time to learn new fuel air mixture? Unplug tps and engine seems to run correctly ie revs drop like a stone to burble about 650. Suggestions please!Thanks for taking time to look and any help offered.CheersSteve Link to post Share on other sites
Daverse 175 Posted October 28, 2011 Report Share Posted October 28, 2011 cams usually need a remap to adapt to the fuek settings, given jim a bell? Link to post Share on other sites
ssaunders 199 Posted October 28, 2011 Author Report Share Posted October 28, 2011 Hi, spoke to Jim today and he says the cams wouldn't do that.CheersSteve Link to post Share on other sites
jims13 6 Posted October 28, 2011 Report Share Posted October 28, 2011 they shouldn't do i ran my 263's without a map to start with..id say a small wee air leak , but otherwise if your confident its all timed up correct etc.. then check all the basics.. most poor running on 12v vr6's are air leaks or breaks in wiring .. i spouse its a age related thing .. you put a replacement part on a disturb something along the line Link to post Share on other sites
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