How do my plugs look? Version 2.0
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How do my plugs look? Version 2.0
Ok so this is a followup to my previous thread about my poor mileage and the process of doing a tuneup. Heres the old thread. https://www.rx7club.com/2nd-generation-specific-1986-1992-17/tune-up-how-do-my-plugs-look-667675/
So my mileage has still not improved so I'm trying to determine if my injectors are leaking. I pulled my plugs to do a quick check that my buddy suggested. These new plugs have less than 1,100 miles on them. I took two pictures of the rear trailing because it appeared the most different.
So what say everyone?
Front leading:
Front trailing:
Rear leading:
Rear trailing:
So my mileage has still not improved so I'm trying to determine if my injectors are leaking. I pulled my plugs to do a quick check that my buddy suggested. These new plugs have less than 1,100 miles on them. I took two pictures of the rear trailing because it appeared the most different.
So what say everyone?
Front leading:
Front trailing:
Rear leading:
Rear trailing:
#2
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Still using the stock oil injection?
If so, they look just about right.
What kinda gasoline are you using?
The deposits are kinda heavy.
Do mostly stop-n-go driving?
Very little freeway?
-Ted
If so, they look just about right.
What kinda gasoline are you using?
The deposits are kinda heavy.
Do mostly stop-n-go driving?
Very little freeway?
-Ted
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Still using the stock oil injection?
If so, they look just about right.
If so, they look just about right.
What kinda gasoline are you using?
The deposits are kinda heavy.
Do mostly stop-n-go driving?
Very little freeway?
-Ted
Do mostly stop-n-go driving?
Very little freeway?
-Ted
My mechanic thinks that the injectors on the rear rotor are leaking because of the lighter color on the rear plugs than the front.
I'm getting really tired of getting 10-12mpg on a lame N/A .
Thanks for the help, -Lukas.
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I've been using Arco.
Hm ok. So I'm back to trying to figure out why my mileage sucks so much. Could it be a clogged cat? I've still got average performance for an NA.
I've replaced the plug wires, plugs, air filter, and the fuel filter is very new.
Again, thanks for the help Ted.
-Lukas
If it is leaking, it's leaking very little.
If it's leaking a lot, then the spark plug would be very black.
-Ted
If it's leaking a lot, then the spark plug would be very black.
-Ted
I've replaced the plug wires, plugs, air filter, and the fuel filter is very new.
Again, thanks for the help Ted.
-Lukas
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Don't use Arco gas....
Just for kicks, run a couple tanks of 76/Shell/Chevron, and see if mileage improves. My dad told me when he had his '87 sport back in the day, the couple times he put Arco in it, the car would barely start and would run like ****.
Just my 2c
Just for kicks, run a couple tanks of 76/Shell/Chevron, and see if mileage improves. My dad told me when he had his '87 sport back in the day, the couple times he put Arco in it, the car would barely start and would run like ****.
Just my 2c
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ARCO is suspect.
Could I have a clogged catalytic convertor?
Does it lack power?
-Ted
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Same thing with the power, this is my first RX-7 so I don't have anything to compare it to. But the power feels like I would expect. But I could be underestimating the car.
Want me to fly the car to Hawaii for you to look at Ted? :P
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