Under the Cylinder test menu I thought I could easily do the Cranking amps bar graph test on a 2001 Honda CRV with conventional ignition system , however keeping the accelerator pedal to the floor during cranking, the pcm does not disable the fuel injectors to prevent engine from starting. Disconnecting the fuse to the PGMFI relay will disable both the fuel pump and ignition system.The fuel pump connector access under seat requires removal of the rear seat frame assembly and accessing G309 (fuel pump ground supposively somewhere at the Left door sill , (the f@cking auto software doesn't provide an image of the location of G309.) I popped the LF kickpanel and see a ground with at least a half dozen wires, so I know it's not G309 that only has 2 circuits on it.
I'm not going to pull any stuff apart looking for some hidden fuel pump ground to disconnect to perform some cranking bar graph test that I need the ignition system in working in order to have a trigger for #1 to be able to perform the test.
I figure I would just have to Hump it using the ragged hump relative compression test off the battery using lab scope like Verus users do . I set the labscope setting to 1 volt scale , AC coupled , and longest time range on labscope offered is (200MS) Milliseconds . I don't know what the US time scale is , but thinking it's a shorter time period than MS time scale. I know I have been able to view fuel pump voltage patterns ( that occurs at a much higher frequency than the pistons reaching TDC on the compression stroke on cranking. I might be wrong, but I kind of think the 200MS max time period (1/5 th of a second is not long enough to view any useful relative compression voltage pattern and I just spent a lot of time on BS for nothing.
If anybody uses the Counselor 2 to do quick relative cranking compression test viewing voltage humps without any specific trigger by auxiliary voltage test lead and compare voltage humps using the lab scope selection, please share how it's done.Thanks
I'm not going to pull any stuff apart looking for some hidden fuel pump ground to disconnect to perform some cranking bar graph test that I need the ignition system in working in order to have a trigger for #1 to be able to perform the test.
I figure I would just have to Hump it using the ragged hump relative compression test off the battery using lab scope like Verus users do . I set the labscope setting to 1 volt scale , AC coupled , and longest time range on labscope offered is (200MS) Milliseconds . I don't know what the US time scale is , but thinking it's a shorter time period than MS time scale. I know I have been able to view fuel pump voltage patterns ( that occurs at a much higher frequency than the pistons reaching TDC on the compression stroke on cranking. I might be wrong, but I kind of think the 200MS max time period (1/5 th of a second is not long enough to view any useful relative compression voltage pattern and I just spent a lot of time on BS for nothing.
If anybody uses the Counselor 2 to do quick relative cranking compression test viewing voltage humps without any specific trigger by auxiliary voltage test lead and compare voltage humps using the lab scope selection, please share how it's done.Thanks
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