[shiwei]

Thank you for your reply. B)

[shiwei]

Very scientific explanations. Thank you, pro. B)

[shiwei]

12.6 was measured when not cranking.
No codes yet.
:cheer:

[shiwei]

Agree. I am looking at Jeep cherokee with AT, the bad is that it has 9-speed transmission that is very problematic.
I will probable choose a 6speed AT, such as Accord.

Thank you, pro.

[shiwei]

Thank you for your detailed analysis.

I followed ETCG’s video to do the test, with spark plugs removed, fuel pump/injector disabled, engine at temp and throttle wide open.

But I didn’t find the ignition fuse or relay on this car, so just disconnect ignition coils from spark plugs.

I will try another compression tester before I do the leak down test following ETCG’s video.

The main problem are that 1) the engine cranks at a very low stroke speed, probably 1second/stroke. from ETCG’s video, it takes only about 1 second to finish 5 cranks; 2)20~30psi for the first crank. What would be the reasons for these two problems, please?

[shiwei]

BTW, I didn’t find any engine oil on spark plug this time.

[shiwei]

Hi Pro. I just updated my new dry/wet test results. Please do some analysis.
Big thank you.

[shiwei]

yes, it’s dry test. I will did the wet test and then update the data.
Thank you for your reply.

[Author]

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