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that's your precat lambda, nothing to do with the cat. graph the lambda and see what it's doing, chances are the misfire has killed it off.
i won't say i told you so :tonguewink:
standard valves are two piece friction welded afik very close to the head supertec are done higher up away from the head of the valve.
re phil's i'm 99% certain it dropped a valve seat not the head of the valve but the seat killed the valve. i've opened three f4r engines that have dropped a...
I've known 4 gripper diffs shear on the drivers side. Am sure mark has said they've changed whatever they make them from but we got told by gripper that they were doing this when we sent one back that had sheared and the replacement was fractured and twisting after one tarmac event.
the changes are clearly aimed at diesels, if anyone can't see this then they haven't looked at it properly or have just read what the internet or newspapers are blabbing on about it :wink:
nothing has really changed as far as modified stuff goes, seem to be a lot of people flapping about nothing.
it's not really changed to be fair. i've put all sorts through test and never had an issue apart from when something doesn't have a cat. main thing to go by is 'if it's not there it can't fail' that covers the majority of it.
get clued up on how the test works, what can and can't fail and find...
honestly don't see what the fuss is about? been like this for years and the term rally car is used like hoover, it's basically to deal with extensively modified cars.
Yellows are ignition lives.
Also of you have a sensor fault then it probably is the sensor, circuit fault is normally wiring issue that's why it's always best to check with clip as so many readers misread codes and can send you on a wild goose chase.