I go to leave for work this morning and the Cobra cranks, idles rough for a couple of seconds and dies. I try cranking it again and it sounds like it wants start but then changes from a normal cranking sound to a much faster sounding one. Could no spark or fuel from no CKP sensor cause that type of cranking sound?
The only thing that comes to mind that makes me think it's crankshaft sensor related is that the car died on me one day after filling up at a gas station. I started it just fine after having driven 30 miles or so. As I go to leave in 1st gear, it just stalled. I started it again and it drove fine on the way home. Hadn't had any problems until this morning.
I came home this evening and started looking at things. I've got vacuum and fuel gauges in the pillar. Fuel was at 29-30 psi while the fuel pump primed and would jump to 50-60 psi while cranking. I disconnected/reconnected the crankshaft sensor and still had trouble starting it. On my final try, I cranked for what seemed like 10 seconds and started to press the gas pedal and bingo! It starts... However, it was idling pretty rough and almost dying without stabbing the gas every few seconds. While it was running, it was smoking out of the tailpipes. I let it sit for 5 mins or so and then took it for a spin. It drove fine and seem to settle/idle fine at stops. Came back home and shut it off and started up again with no problem. I've noticed a bit of a rougher idle here and there but not quite like a misfire. No CELs.
Do the CKP sensors go bad often on our 4V motors? Are there any tests for these sensors without an oscilloscope? Anyone else have/had issues like this? Also, I noticed a little grime/oil mix around the sensor but nothing that was on the connector or wires. Has anyone had a leak from the sensor area itself? There were no other sources of leaks around it.
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The only thing that comes to mind that makes me think it's crankshaft sensor related is that the car died on me one day after filling up at a gas station. I started it just fine after having driven 30 miles or so. As I go to leave in 1st gear, it just stalled. I started it again and it drove fine on the way home. Hadn't had any problems until this morning.
I came home this evening and started looking at things. I've got vacuum and fuel gauges in the pillar. Fuel was at 29-30 psi while the fuel pump primed and would jump to 50-60 psi while cranking. I disconnected/reconnected the crankshaft sensor and still had trouble starting it. On my final try, I cranked for what seemed like 10 seconds and started to press the gas pedal and bingo! It starts... However, it was idling pretty rough and almost dying without stabbing the gas every few seconds. While it was running, it was smoking out of the tailpipes. I let it sit for 5 mins or so and then took it for a spin. It drove fine and seem to settle/idle fine at stops. Came back home and shut it off and started up again with no problem. I've noticed a bit of a rougher idle here and there but not quite like a misfire. No CELs.
Do the CKP sensors go bad often on our 4V motors? Are there any tests for these sensors without an oscilloscope? Anyone else have/had issues like this? Also, I noticed a little grime/oil mix around the sensor but nothing that was on the connector or wires. Has anyone had a leak from the sensor area itself? There were no other sources of leaks around it.
Sent from my Pixel 2 XL using Tapatalk
