Need help p0300 and slight backfire
#51
5/16 - 18 HHS, 4 Flute tap is available at any good hardware store, Lowes, Home depot, etc. Don't get a cheapie. If it breaks off in the cylinder head, you are screwed. Get a good one, usually around $10. https://www.fastenal.com/products/details/0326801
Last edited by Captain Hook; 03-06-2016 at 04:19 PM.
#53
Start it carefully and gently, make sure it's not cross-threaded. Run it in slowly, back it out every turn or so to clean the flutes, and don't force it. Use oil if necessary. Taps are fragile: It will take less torque to break the tap off, than it does to break a bolt
#54
Start it carefully and gently, make sure it's not cross-threaded. Run it in slowly, back it out every turn or so to clean the flutes, and don't force it. Use oil if necessary. Taps are fragile: It will take less torque to break the tap off, than it does to break a bolt
and they are hardened, so forget about drilling that tap out!
Ask me how I know. . .
P.J.
#55
Ok so I've got it all apart except the valve covers
Looking at the old gaskets I can't find anything wrong with them looks almost brand new and was still sealed pretty good took kind of a lot to pry the intake loose (more than I remember doing the last time)
The only thing I noticed was a little build up around the coolant passages not as bad as last time but I'm sure this is common
Still waiting for Amazon to ship my new stuff
Looking at the old gaskets I can't find anything wrong with them looks almost brand new and was still sealed pretty good took kind of a lot to pry the intake loose (more than I remember doing the last time)
The only thing I noticed was a little build up around the coolant passages not as bad as last time but I'm sure this is common
Still waiting for Amazon to ship my new stuff
#56
Well I finally got all my stuff and time to put it all back together
And after all that hard work I get ........ Extreme disappointment
It runs EXACTLY the same
Ran the live data and it's identical to the last one I ran still p0300 and backfire
Don't really know what this means but I unplugged the o2 sensor on b1s1 (the problem bank) and it ran the same but it would not go into closed loop and the strange part is I did not get a code for it still only p0300
Where do I go from here I'm not even sure what's left to look at. So frustrated
And after all that hard work I get ........ Extreme disappointment
It runs EXACTLY the same
Ran the live data and it's identical to the last one I ran still p0300 and backfire
Don't really know what this means but I unplugged the o2 sensor on b1s1 (the problem bank) and it ran the same but it would not go into closed loop and the strange part is I did not get a code for it still only p0300
Where do I go from here I'm not even sure what's left to look at. So frustrated
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