yet another cam sync question

alper · Post by **alper** » Sun May 10, 2015 10:22 pm

on the sierra DOHC engine, I have a cam vr sensor that's pointing the camshaft lobe.

everything works fine for sequential injection. - well - until around 4000 rpm.

after then, when revving, bursts and blasts start.

is that a 'noise' problem ? what if I choose the "disable cam sync above 1000 rpm ?

knastbigger · Post by **knastbigger** » Mon May 11, 2015 6:46 am

Try to log the 2 trigger parameters
TRIGGER ERROR
TRIGGER SYNC STATUS

alper · Post by **alper** » Mon May 11, 2015 9:28 am

there are NO errors / syncronization loss.

derOJ · Post by **derOJ** » Mon May 11, 2015 11:40 am

i had the same problem yesterday and took a look into manual.
i think i solved it now, by noise filter.
i set 700° of crank angle to ignore any cam trigger.
maybe it will help you too

Post by **Jadzwin** » Mon May 11, 2015 12:39 pm

Please check the following documentas according Cossworth ignition system:

https://dl.dropboxusercontent.com/u/286 ... otesv2.pdf
https://dl.dropboxusercontent.com/u/286 ... %20IAW.pdf

alper · Post by **alper** » Mon May 11, 2015 1:40 pm

yeah but this is not cosworth.
cosworth has no pronblems.

this is Ford Sierra N7A DOHC. (not cosworth engine)

Post by **Jadzwin** » Mon May 11, 2015 1:48 pm

AAA

Please attach the log file here

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yet another cam sync question

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