Hey guys,
Is it just me or should this CPS signal be square wave?
Have had a terrible dying idle on the rev come down for a while. Thinking it could this dirty signal?
Bad square wave signal from CPS?
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BristolE30
- E30 Zone Regular

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Last edited by BristolE30 on Sat Mar 20, 2021 7:05 pm, edited 1 time in total.
BMW E30 316 ‘87
BMW E30 325i ‘88
Bristol, UK
BMW E30 325i ‘88
Bristol, UK
-
BristolE30
- E30 Zone Regular

- Posts: 532
- Joined: Thu May 16, 2019 7:43 pm
- Location: Bristol
BMW E30 316 ‘87
BMW E30 325i ‘88
Bristol, UK
BMW E30 325i ‘88
Bristol, UK
-
BristolE30
- E30 Zone Regular

- Posts: 532
- Joined: Thu May 16, 2019 7:43 pm
- Location: Bristol
@brianmooore any thoughts?
From reading the wiki it clearly states the CPS should convert the sine wave into a square wave. My oscilloscope is showing a sine wave though!! And also it’s really intermittent it seems.
From reading the wiki it clearly states the CPS should convert the sine wave into a square wave. My oscilloscope is showing a sine wave though!! And also it’s really intermittent it seems.
BMW E30 316 ‘87
BMW E30 325i ‘88
Bristol, UK
BMW E30 325i ‘88
Bristol, UK
