Sync problem @ high rpm

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j.oe
Posts: 21
Joined: Sun Jul 15, 2012 12:19 pm

Re: Sync problem @ high rpm

Post by j.oe »

Thanks Pavlo

Thanks a lot for your hints and help. I will check out all that tomorrow evening.
On more idea is to record the analogue input of the cam sensor at idle, in order to make sure it exceeds the high threshold.

Jürgen
pavlo
Zen Performance
Posts: 407
Joined: Mon Aug 04, 2008 10:18 am

Re: Sync problem @ high rpm

Post by pavlo »

Yes you have the right idea, as long as the high output is nicely over (say 0.3v or more) the threshold at idle you will be fine,
j.oe
Posts: 21
Joined: Sun Jul 15, 2012 12:19 pm

Re: Sync problem @ high rpm

Post by j.oe »

Today i logged the cam sensor @ idle rpm. Even @ 800 rpm it easily reaches the pos. and neg. saturation limits of +/- 5V.
So i set the high threshold to 2.5 V and the low to -1.0 V. The car logically still idles well.
Tomorrow i will do a rpm limit pull and check out if the problem is sorted now, but should be ...
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