Hello, I am new owner of a 1986 Civic FI and am stumped on an issue. I went out last week to drive to work and it would not start it would turn over but not start. So I check the normal easy fix problems and turned out it was the pick-up coil. Great easy fix drove to work and once the motor got up to temperature I would stall while at a stop, weird started back up no issues but then stalled again. Waited for the light to turn started up and drove until I had to stop again and it stalled. Limped it to work and checked timing, distributor, dizzy, plugs and wires all good, and within spec. long story short got it home and checked water temp sensor to ECU, fuel pressure, injectors, crank sensor, and ignition coil all good within spec per the manual. So I pulled the codes and only got TPS error code, checked it and the Ohms where all over the place as I opened and closed the linkage on the TB.

Side issue can’t find a replacement TB or TPS sensor but the symptoms of a bad TPS are normally erratic idle not good idle and then stall right?

Sorry for the long story but any help or suggestions would be appreciated

Oh and I have tested the Main relay

 

Test the TPS with a voltmeter (key on, engine not running), observe the voltage at the center wire increase smoothly as you go from throttle closed to wide open. Don't expect anything to work properly with a major sensor malfunctioning.

 

ok tps checks out ok thanks for the help, but the main issue still remains it will stall after 30 sec - 1min starts back up ok but will stall unless i keep the RPMs high