Quote:
Originally Posted by tpl.mallon
That’s almost certainly a 5V reference issue, not bad pedals or throttle bodies.
If you’re seeing full 5V with the pedal unplugged but it drops hard when plugged in, that usually means the 5V ref circuit is being pulled down somewhere (short to ground or high resistance).
Since unplugging MAF, eccentric shaft sensor, etc. didn’t bring the voltage back, I’d be looking at:
• Wiring damage (especially after the blowout/sitting)
• Short in the 5V ref line to ground
• Corrosion or pin fitment issues at the DME connector
Very unlikely both pedals are bad, especially with different readings.
At this point I’d trace the 5V ref wire from the DME to the pedal and check for voltage drop/shorts under load.
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Much appriciated for the help, I've measured the voltage on the Throttle body connector and it's also the 1v value, would you know which pins of the msv80 would control theat reference 5v I've had a look and I think it would be pin 24 but unsure