installed MSPNP, it ran. tried to adjust timing, wont stay running? - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


MEGAsquirt A place to collectively sort out this megasquirt gizmo

Reply
 
 
 
LinkBack Thread Tools
Old 02-05-2008, 10:00 PM   #1
Junior Member
Thread Starter
iTrader: (3)
 
Join Date: Apr 2007
Location: Charlottesville, VA
Posts: 177
Total Cats: 0
Default installed MSPNP, it ran. tried to adjust timing, wont stay running?

just puchased a MSPNP. well i installed it today, and it idled a little rough, but it was in the 850 range, nothing to be worried about before tuning i assume.

heres the weird part. i had my timing set for 14* but in the installation instructions, it says to set it back to 10* before adjusting anything on the unit and that if i wanted to adjust timing i could do it from the software (not looking at the instructions, please correct me if im wrong). so i hooked up the timing light connected GND and TEN blah blah blah. the timing light wouldnt keep a consistant blink, it would blink then shut off, then blink more, then shut off etc. so i just go by what it shows while its blinking (it was showing about 14*) i turned the CAS making the part that u push on go downwards, then i realized that i did not remember which way to turn it to retard the timing and which way to advance it. so i turned the car off (the fumes from it running rich from the lack of being tuned was killing me) and went online to look it up and couldnt find it. so i decide i'll just look at the indicator to see if i were advancing it or retarding it. i go to turn on the car, it will start, then immediately just die. no jerks or anything, the RPM's just drop to zero. it will stay running if i rev it, but not if it tries to just idle. it also doesnt seem to blow as much smoke when i rev it so im thinking that its not running as rich as before.

any ideas?
f1luva92 is offline   Reply With Quote
Old 02-05-2008, 10:02 PM   #2
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,362
Total Cats: 1,323
Default

You set the static timing to 10 from the normal -10, right?
Savington is offline   Reply With Quote
Old 02-05-2008, 10:09 PM   #3
Elite Member
iTrader: (11)
 
Join Date: Jun 2007
Location: Overland Park, Kansas
Posts: 5,382
Total Cats: 43
Default

no no no! You don't use the Datalink connector to set the timing anymore!!
Go into megatune and remove the idle advance there!!!



As indicated there, change the "-10" to "10" and burn. That will remove idle advance, then adjust the top number (shown as 65 degrees above) until your light reads 10* then set the 10 back to -10. Make sure "Trigger angle addition" is set to 0. Burn, Save.

Word of advice.. Never, EVER, EVER, EVVVVVER!!!! change inverted spark to "YES." NEVER!!
elesjuan is offline   Reply With Quote
Old 02-06-2008, 12:05 AM   #4
Junior Member
Thread Starter
iTrader: (3)
 
Join Date: Apr 2007
Location: Charlottesville, VA
Posts: 177
Total Cats: 0
Default

Quote:
Originally Posted by elesjuan View Post
no no no! You don't use the Datalink connector to set the timing anymore!!
Go into megatune and remove the idle advance there!!!



As indicated there, change the "-10" to "10" and burn. That will remove idle advance, then adjust the top number (shown as 65 degrees above) until your light reads 10* then set the 10 back to -10. Make sure "Trigger angle addition" is set to 0. Burn, Save.

Word of advice.. Never, EVER, EVER, EVVVVVER!!!! change inverted spark to "YES." NEVER!!
ok, i've done all of that now. timing is good, but its still not wanting to idle. i've figured out that if i rev it up to about 2000 rpms, and very slowly let off the gas down to about 1000 rpms then let off, it will have trouble, but then will idle very very rough bouncing down then up to about 950-1000 then back down to about 650-750 then back up. i revved it up to 2000 and held it there, it would do the same thing, but at higher rpms obviously.

seems to be running a little rich as there is some smoke coming out of the exhaust. which i believe (but could be wrong about) could mess up my idle. i know im gonna get obnoxious here and sound like the newb that i am, but heres my question, how do i lean it out a bit with megatune?


EDIT: i think i found my answer. do i go to the engine constants and adjust the a/f ratio?

Last edited by f1luva92; 02-06-2008 at 12:20 AM.
f1luva92 is offline   Reply With Quote
Old 02-06-2008, 12:29 AM   #5
Elite Member
iTrader: (11)
 
Join Date: Jun 2007
Location: Overland Park, Kansas
Posts: 5,382
Total Cats: 43
Default

I've been using MegaLogViewer and it works fantastic!

http://www.ideasandsolutions.biz/MegaLogViewer/

Worth a shot.. You just have to read and tinker, thats basically what I did.
elesjuan is offline   Reply With Quote
Old 02-06-2008, 01:05 AM   #6
Senior Member
iTrader: (8)
 
turbobluemiata's Avatar
 
Join Date: Aug 2006
Location: Springfield, IL
Posts: 1,019
Total Cats: 0
Default

when i first installed my ms when it was idling it did the same thing the first time i started it up and it smelled like straight gas but it was to lean and just spitting out unburnt gas so you might not be rich just my 2 cents
turbobluemiata is offline   Reply With Quote
Old 02-06-2008, 08:31 AM   #7
Junior Member
 
Join Date: Jan 2007
Posts: 188
Total Cats: 0
Default

How can you connect something like this to your car and not read the bloody manual?
richard_ha is offline   Reply With Quote
Old 02-06-2008, 08:47 AM   #8
Newb
iTrader: (1)
 
Join Date: Feb 2006
Posts: 21
Total Cats: 0
Default

My advice is to read DIY's installation instructions carefully. They are comprehensive and if you get stuck they offer the best support via e-mail I have ever experienced. A lot of people here on this board are pretty techie and they forget that for some people this stuff can be difficult (I have worked in IT for 20 years and I still have to work through a lot of things slowly). I am not trying to scare you, but if you don't understand what you're doing you could have an engine damaging experience. The DIY Website even had a video talking you through how to set the timing.

My experience with idling (and I'm still trying to get it right) is that a really cranky bouncy idle happens when it's running too lean.

Last edited by bbrbob; 02-06-2008 at 08:50 AM. Reason: Putting the wrong worms in....
bbrbob is offline   Reply With Quote
Old 02-06-2008, 11:57 AM   #9
Elite Member
iTrader: (1)
 
Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,658
Total Cats: 39
Default

Quote:
Originally Posted by richard_ha View Post
How can you connect something like this to your car and not read the bloody manual?

I quite agree....
richyvrlimited is offline   Reply With Quote
Old 02-10-2008, 08:59 PM   #10
Elite Member
iTrader: (1)
 
Join Date: Jun 2007
Location: VA, Germany, Afghanistan
Posts: 2,967
Total Cats: 3
Default

ok so i sold this kid his MSPNP...i live close by and know him so im letting him make payments i sold it to him for $500..he's given me $200 so far....he seems to think that any damage that he's done to his car b/c he didnt have a vaccum source hooked up to his map sensor is my fault because "i sold him a MSPNP and didnt include the vaccum hose so that made it seem like it was an optional part to him" how stupid does this sound to everyone here? and what does everyone think i should do in the event that the 17 year old dont pay up the other $300....?
KPLAFIN is offline   Reply With Quote
Old 02-10-2008, 09:17 PM   #11
Elite Member
iTrader: (5)
 
Join Date: Oct 2007
Location: Canton, Ga
Posts: 1,707
Total Cats: 19
Default

Quote:
Originally Posted by KPLAFIN View Post
ok so i sold this kid his MSPNP...i live close by and know him so im letting him make payments i sold it to him for $500..he's given me $200 so far....he seems to think that any damage that he's done to his car b/c he didnt have a vaccum source hooked up to his map sensor is my fault because "i sold him a MSPNP and didnt include the vaccum hose so that made it seem like it was an optional part to him" how stupid does this sound to everyone here? and what does everyone think i should do in the event that the 17 year old dont pay up the other $300....?
take it back and give him is $200
Stealth97 is offline   Reply With Quote
Old 02-10-2008, 10:58 PM   #12
Junior Member
Thread Starter
iTrader: (3)
 
Join Date: Apr 2007
Location: Charlottesville, VA
Posts: 177
Total Cats: 0
Default

brian, dude, relax. i told u im getting u the rest of your money, u dont need to take this on the forum. and i've got the car running fine now in case anyone actually cares about that.

EDIT: since we're wondering what the people on here think of things. what do you guys think about this kid getting my brother's phone number off of his website for his spec miata racing and then calling him asking for my home phone #. keep in mind this is after we got into an argument about him not including the MAP vacuum line and then that being resoved by saying that he would get all of his money minus the cost of the vacuum line.

IMO, this is completely wrong
f1luva92 is offline   Reply With Quote
Old 02-10-2008, 11:07 PM   #13
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Lexington, SC
Posts: 2,084
Total Cats: 0
Default

Quote:
Originally Posted by KPLAFIN View Post
ok so i sold this kid his MSPNP...i live close by and know him so im letting him make payments i sold it to him for $500..he's given me $200 so far....he seems to think that any damage that he's done to his car b/c he didnt have a vaccum source hooked up to his map sensor is my fault because "i sold him a MSPNP and didnt include the vaccum hose so that made it seem like it was an optional part to him" how stupid does this sound to everyone here? and what does everyone think i should do in the event that the 17 year old dont pay up the other $300....?
-1 feedback???!!???

glad to hear you got your car running, how aggressive are you going to go on the timing?
mazda/nissan is offline   Reply With Quote
Old 02-10-2008, 11:09 PM   #14
Junior Member
Thread Starter
iTrader: (3)
 
Join Date: Apr 2007
Location: Charlottesville, VA
Posts: 177
Total Cats: 0
Default

Quote:
Originally Posted by mazda/nissan View Post
-1 feedback???!!???

glad to hear you got your car running, how aggressive are you going to go on the timing?
not very since im planning on putting a turbo on in the next few months.

and i didnt give him the -1 feedback btw, he got that from someone else.
f1luva92 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
MS PNP requires reading and following directions??? satisfied MEGAsquirt 141 10-06-2015 11:44 AM
Cannot set Base Timing to 10* Elfering MEGAsquirt 50 10-05-2015 09:04 AM
mm0105 TABLE SWITCHING WIRING? slomiata MEGAsquirt 2 09-15-2015 01:54 PM
E-Manage Base Maps faviles5566 ECUs and Tuning 0 09-04-2015 12:50 PM
E-Manage Base Maps faviles5566 ECUs and Tuning 0 09-04-2015 12:50 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 05:28 AM.