MS PNP requires reading and following directions??? - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 09-16-2015, 10:43 AM   #21
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First off, yes you need a proper tps to do the tune justice.
Second, yes VEAL goes bonkers at idle, I usually set min 1200rpm and min 35kpa and tune everything below those by hand
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Old 09-16-2015, 10:50 AM   #22
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Do NOT autotune idle.
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Old 09-16-2015, 11:53 AM   #23
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My instructions state 1500rpm and 30kPa MAP as the minimum numbers to use.
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Old 09-16-2015, 12:10 PM   #24
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Quote:
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My instructions state 1500rpm and 30kPa MAP as the minimum numbers to use.

Badass, I'll hybrid the suggestion and hit 35kPa and 1500rpm as the mins. Thanks guys!
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Old 09-19-2015, 08:28 PM   #25
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Mi idle kPA is reading 14.... I don't think that's normal.
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Old 09-19-2015, 08:29 PM   #26
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nope. sho aint
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Old 09-19-2015, 09:04 PM   #27
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nope. sho aint

So vacuum leak then? Have anything to do with my VTA BOV?
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Old 09-19-2015, 09:07 PM   #28
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if it's speed density then no, a leak would make it read higher
unless you're tee'd off a really weird place for the map sensor, and not the manifold like you're supposed to
or unless the leak is at the line going to the map
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Old 09-19-2015, 09:22 PM   #29
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if it's speed density then no, a leak would make it read higher
unless you're tee'd off a really weird place for the map sensor, and not the manifold like you're supposed to
or unless the leak is at the line going to the map

God damnit. Just got the interior back in. I tee'd off at the twin TB nipples, as they were free. with my boost gauge tee'd off the line going from the TB nipple to the MAP as they were both going to the interior... Was this wrong? Even under throttle, it's not moving beyond 12.7 now. Seems to get worse as it gets warm...

Since my boost gauge is in line with my TB nipple to MAP, I will say with the car off, the boost gauge reads 0 with it on and idling, it reads 24VAC, raising slowly as I increase RPM in neutral.
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Old 09-19-2015, 09:33 PM   #30
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Here's a log of me trying to get to 5k RPM in neutral without AFR's going to 16+ Not sure if it will help diagnosis.
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File Type: csv 2015-09-19_17.30.04.csv (78.5 KB, 33 views)
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Old 09-19-2015, 09:33 PM   #31
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<p>Tee off the line going to the Fuel Pressure Regulator. Mazda thinks it is the best place to measure manifold pressure.&nbsp;</p>
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Old 09-19-2015, 09:36 PM   #32
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find where you kinked the vacuum line to the map sensor
if the gauge is reading vacuum fine then it's probably that
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Old 09-19-2015, 09:51 PM   #33
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Quote:
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find where you kinked the vacuum line to the map sensor
if the gauge is reading vacuum fine then it's probably that
Fantastic troubleshooting. It must be after the boost gauge as the gauge is reading normal. ****** a peter, lemme just poop then I'll fix stuff.
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Old 09-19-2015, 10:06 PM   #34
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Quote:
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Fantastic troubleshooting. It must be after the boost gauge as the gauge is reading normal. ****** a peter, lemme just poop then I'll fix stuff.

You guys are god damned geniuses. Kink at kick plate after the boost gauge T! Removed excess line, retested kpa at 30-35 for idle!!!
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Old 09-19-2015, 10:26 PM   #35
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Fixed.
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Old 09-20-2015, 12:57 AM   #36
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Fixed.
Boosted for the first time today. Holy **** rev, thanks. Couple flat spots 2nd to 3rd with no one to accurately witness why, but it's boss as ****.


I love you ********.
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Old 09-20-2015, 06:10 AM   #37
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Yay!
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Old 09-20-2015, 02:05 PM   #38
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Yay!

I'll be throwing on VTPS today, hopefully I don't hose all the data by introducing that, and I'm hoping it clears up the first gear hesitation/stumble/possible stall if you're not careful!

Rev your basemaps are the best thing ever. I never felt like the engine was in danger while gently street tuning the car.

I can't wait to tune my wife's 1.8 VVT swapped NA.
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Old 09-21-2015, 12:57 AM   #39
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Stumble is still there, significantly lessened however. Anyone have tips for making changes to idle while many accessories are on? Heater, windshield wipers, lights, and blinker? I'm at 14.2 AFR no electrical load and 16.8 with all those things on. Is that okay? Tips for first/reverse stumble?

I went with TPS4185 it wasn't fun, about a 2 hour job total.
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Old 09-21-2015, 02:25 AM   #40
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Quote:
Originally Posted by satisfied View Post
Stumble is still there, significantly lessened however. Anyone have tips for making changes to idle while many accessories are on? Heater, windshield wipers, lights, and blinker? I'm at 14.2 AFR no electrical load and 16.8 with all those things on. Is that okay? Tips for first/reverse stumble?

I went with TPS4185 it wasn't fun, about a 2 hour job total.

Getting massive flat spots in 1st, 2nd, 3rd, 4th, and 5th as I get ballsy with the throttle. I read several threads, turned on AE, TPSDOT, calibrated the new VTPS, at low RPM the flat spots are WORSE, at high RPM they've become MUCH MUCH BETTER!!!

How do we eliminate these?
Attached Files
File Type: csv 2015-09-20_22.09.16.csv (33.2 KB, 28 views)
File Type: msq CurrentTune.msq (110.2 KB, 56 views)
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