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TPS signal goes away when car starts
Posted: Wed Sep 15, 2010 6:44 pm
by 1983sc
I'm running MS 2, version 2.2. I can calibrate my Ford TPS with MegaTune and get zero to full scale readings until I start the engine. Than the signal goes to zero. Any ideas?
Re: TPS signal goes away when car starts
Posted: Thu Sep 16, 2010 12:34 am
by trakkies
1983sc wrote:I'm running MS 2, version 2.2. I can calibrate my Ford TPS with MegaTune and get zero to full scale readings until I start the engine. Than the signal goes to zero. Any ideas?
Just some thoughts. How is it grounded? Have you checked the 5 volt supply to it with the engine running? And the output voltage from it?