Megasquirt ms1 works untill boost hits then it misses REALY bad
05-21-12, 06:21 PM
#1
Rotary Enthusiast
Thread Starter
iTrader: (8)
Join Date: Feb 2007
Location: Southwest
Posts: 817
Likes: 0
Received 0 Likes
on
0 Posts
ms1 works untill boost hits then it misses REALY bad
recap on the car, its a fb with a 1/2 bridge 12a thats got about 1200 mi on it, fc intake,tb, turbo,and coils, 550cc primary and 920cc secondary injectors.
the car is running pretty good untill it hits 100-120 kpa at which time it starts missing realy bad and the temp jumps from 180 deg, to 200 deg and the exaust manifold starts glowing,
the car is running pretty good untill it hits 100-120 kpa at which time it starts missing realy bad and the temp jumps from 180 deg, to 200 deg and the exaust manifold starts glowing,
05-22-12, 09:18 AM
#2
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes
on
91 Posts
What is that attachment? TunerStudio won't open it (had to rename it to .MSQ) and it's not a CSV file as would be generated by datalogging.
What are your AFRs when the car starts hesitating? How long does it take to increase the temperature?
My guess is that it's simply way too rich, there isn't enough timing (don't just add timing to test!) or boost ignition cut is enabled...
What are your AFRs when the car starts hesitating? How long does it take to increase the temperature?
My guess is that it's simply way too rich, there isn't enough timing (don't just add timing to test!) or boost ignition cut is enabled...
05-22-12, 03:23 PM
#4
Rotary Enthusiast
Thread Starter
iTrader: (8)
Join Date: Feb 2007
Location: Southwest
Posts: 817
Likes: 0
Received 0 Likes
on
0 Posts
the attachment should have been my msq zipped, ill try it again tomarrow when i have the laptop. afr is 11-10 when it starts missing, when it starts it takes maby 2 min to go from 180 to 200 deg and the turbo manifold will be glowing cherry red. my timing is set per your write up ( Aaron cake), should it be differant being a half bridge??
i dont remember seeing boost ignition cut in the set up stuff, but that sounds about like what its doing. ill check that.
rx7vadim; i dont understand what you mean?? are you saying after it missfires when im driveing it will continue to do it untill??? i power cycle the ms, replace plugs?
i dont remember seeing boost ignition cut in the set up stuff, but that sounds about like what its doing. ill check that.
rx7vadim; i dont understand what you mean?? are you saying after it missfires when im driveing it will continue to do it untill??? i power cycle the ms, replace plugs?
05-24-12, 04:22 PM
#5
Rotary Enthusiast
Thread Starter
iTrader: (8)
Join Date: Feb 2007
Location: Southwest
Posts: 817
Likes: 0
Received 0 Likes
on
0 Posts
going over the settings, overboost is set at 250 kpa and baro correction was set at 119kpa, im thinking that was a problem, i reset it to 90 kpa for a test and ill run the car this weekend.
06-14-12, 03:25 PM
#7
Rotary Enthusiast
Thread Starter
iTrader: (8)
Join Date: Feb 2007
Location: Southwest
Posts: 817
Likes: 0
Received 0 Likes
on
0 Posts
well i reset baro correction, added a little timing and removed a LOT of fuel and its running good now, im just working on tunning it. thanks for the help.
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
befarrer
Microtech
3
08-22-15 05:52 PM
