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'90 Legacy-simultaneous bouncing tach/engine miss. Huh?
Posted 24 October 2003 - 06:23 PM
Posted 24 October 2003 - 08:39 PM
Posted 24 October 2003 - 10:18 PM
Posted 25 October 2003 - 05:50 AM
Posted 25 October 2003 - 08:55 PM
I don't have the testing procedure in front of me right now, but you can test it.
Posted 26 October 2003 - 08:14 PM
Posted 26 October 2003 - 08:25 PM
Posted 26 October 2003 - 10:30 PM
Just had a thought: does the crank position sensor provide the signal for the tach? I just had to replace one of those on my '95 Legacy. The '90 does start hard on occasion, too.
Posted 27 October 2003 - 01:53 AM
Having dismantled my dashboard a number of times due to blown bulbs, I am quite sure that the tach runs off info from the ECU.
Posted 27 October 2003 - 08:34 AM
Assuming the combination meter is good, the wiring between the combination meter and ECU are good, and the ECU is not on the fritz, yeah I'd probably suspect the crank & cam sensors like setright said.
Posted 27 October 2003 - 12:08 PM
Posted 31 October 2003 - 06:51 AM
Posted 31 October 2003 - 11:38 AM
Posted 31 October 2003 - 12:36 PM
Posted 31 October 2003 - 02:01 PM
Posted 31 October 2003 - 02:17 PM
The switch controls those circuits and is a wearing item.
Does anything trigger it like a bump?
Posted 31 October 2003 - 03:36 PM
Posted 01 November 2003 - 05:11 AM
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