gmbellew
Full Access Member
- Joined
- May 27, 2018
- Posts
- 1,214
- Reaction score
- 1,283
- Location
- Kansas city
- First Name
- glen
- Truck Year
- 1990
- Truck Model
- suburban 1500
- Engine Size
- 350
Yes, like this or very similar. Easily comes off when you pinch it and can spin around when plugged.
Not sure about having mechanical advance in TBI, I thought that timing is managed electronically.
I believe it's correct, not touched it recently, can' feel any misfire. I checked plugs some time ago and they were all fine and even.
Just had it come back on a way back home. I mean I did not check the code, but 99% chance that it's the same one Looks like it must be timed well when the coolant is hot enough, otherwise it will not show.
I'll do the check once again to make sure it is properly grounded and attached, also maybe I'll try hitting engine block to provoke "fake knock" and see if it will register anything.
If it doesn't help then replacement.. Looks like the sensor is available online in Poland. But having to drain the coolant once again makes it bit annoying...
my guess is it is failing the self test. it wont self test until the engine is warm. last time i ruined a sensor, i could audibly hear the pinging when it self tested, and the engine light came on right after. when you remove or install a knock sensor, always use a vice grip or something to avoid spinning the sensor internals and killing it.
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