What should be the MAF reading at WOT?
#5
At idle it's 4.3 -4.6gs
free rev no load at 2k is 8.4gs
I just checked At WOT right now it's 115gs At around 85-9k in first gear
Ltft at idle 7-10
Stft around 0
Ltft at 2k is 8
I've checked for vacuum leaks everywhere. I'm getting fuel pressure gauge tomorrow to check pressure at load.
Any advice?
free rev no load at 2k is 8.4gs
I just checked At WOT right now it's 115gs At around 85-9k in first gear
Ltft at idle 7-10
Stft around 0
Ltft at 2k is 8
I've checked for vacuum leaks everywhere. I'm getting fuel pressure gauge tomorrow to check pressure at load.
Any advice?
#7
Yes I actually plugged it up with a cap under the tb to see if the vfad was at fault and to no avail. I used up an entire can of carb cleaner checking the lines.
The car sat for a week with 1/4 gas in the tank. I went to start it and it fired up right away with maf around 5.0 and it drove a little better, but went back down to 4.4 the next day
The car sat for a week with 1/4 gas in the tank. I went to start it and it fired up right away with maf around 5.0 and it drove a little better, but went back down to 4.4 the next day
#9
Compression tested by rotary tech, it was good not on the low side. Best way to smoke test? I've read it's not a good idea to mix the smoke with the fuel vapors for some reason
#10
My MAF readings on my 6speed auto at max of 7krpm seemed to be about 180.
I've got 34k miles so I don't use much, but in the last month I got 170 once, and a lot of 150s.
This should measure pumping of rotors, but I wonder if **** gas would affect it.
I'll check some more, and if new summer gas out about now doesn't raise it, maybe I'll reach for a bottle of TECHRON.
I never used Techron on this car since idle seemed ok, and I didn't want to wash oil off apex seals.
I'm not a newb if it sounds like it.
I've got 34k miles so I don't use much, but in the last month I got 170 once, and a lot of 150s.
This should measure pumping of rotors, but I wonder if **** gas would affect it.
I'll check some more, and if new summer gas out about now doesn't raise it, maybe I'll reach for a bottle of TECHRON.
I never used Techron on this car since idle seemed ok, and I didn't want to wash oil off apex seals.
I'm not a newb if it sounds like it.
#11
What are you actual compression numbers? Mine were not on the low side either, just above the line. As for the smoke test look on youtube for how to make a homemade one, or you can buy a homemade one on ebay for $50-$75. I just took the intake off and covered to accordian with plastic wrap and rubber bands. Then hooked the smoke tester up to the vfad nipple.
#12
Well he didn't give me actual numbers I should've asked but he said in right in the middle. But my 8 runs real good once in a while. No hard starts at all. Did you have a leak? That's what I'll do get one from ebay and use your strategy
#13
https://www.rx8club.com/series-i-tec...m-idle-264277/
#14
Mine runs real good all the time. No hard starts. Found a slight leak around the three hoses connected to the accordian, but did not change maf values when clamped. See thread below.
https://www.rx8club.com/series-i-tec...m-idle-264277/
https://www.rx8club.com/series-i-tec...m-idle-264277/
#15
What am I doing here?
Join Date: Mar 2006
Location: 2017 Miata RF Launch Edition
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If the guy doing your compression test didn't give you numbers, you need to do one of two things:
1) Go back and get the actual numbers.
-or-
2) Get your money back.
I have a friend who just found out his engine is way below failing (88-90 psi @ 270 RPM) but his car runs fine (it's his track toy and never has hot idle or warm start issues).
1) Go back and get the actual numbers.
-or-
2) Get your money back.
I have a friend who just found out his engine is way below failing (88-90 psi @ 270 RPM) but his car runs fine (it's his track toy and never has hot idle or warm start issues).