oscilloscope test

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jeanb
Posts: 5
Joined: Sun Apr 20, 2014 4:59 pm
ECU Model: No ECU

oscilloscope test

Post by jeanb »

Hello,

i have done an oscilloscope test, and i don't know if there are something wrong.
It's a xu10j4rs engine with jenvey itb's,cams, wasted spark coil and Dta S40 ecu.

Image


Many thanks!!
stevieturbo
Posts: 3577
Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: oscilloscope test

Post by stevieturbo »

Are you having problems or expecting something to be wrong ?
jeanb
Posts: 5
Joined: Sun Apr 20, 2014 4:59 pm
ECU Model: No ECU

Re: oscilloscope test

Post by jeanb »

Yes Stevieturbo, i have some misfires at iddle and low revs,that now it seems to be solved touching in the flywheel sensor, and i want to know if there are something wrong in the test.

All the other oscilloscope test that i have seen, show many spikes, so,how mine it's flat, i have a doubt
stevieturbo
Posts: 3577
Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: oscilloscope test

Post by stevieturbo »

It's flat because the engine is running and idling smoothly. Certainly from that snapshot everything looks fine.

The up/down traces you see are with the engine cranking and not starting, hence rpm rises and falls each time compression is seen then passed hence the traces go up/down
jeanb
Posts: 5
Joined: Sun Apr 20, 2014 4:59 pm
ECU Model: No ECU

Re: oscilloscope test

Post by jeanb »

Ok. Many thanks!!! i'm more calm if you say that all looks fine :D
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