MEGAsquirt A place to collectively sort out this megasquirt gizmo

My MSPNP 90-93 Thread

Thread Tools
 
Search this Thread
 
Old 04-20-2008, 07:49 PM
  #41  
Former Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,442
Total Cats: 2,100
Default

Your timing is fucked, and it's probably not the MSPNP settings. Un-**** it.
Savington is offline  
Old 04-20-2008, 07:50 PM
  #42  
Senior Member
iTrader: (5)
 
The_Pipefather's Avatar
 
Join Date: Nov 2007
Location: Troy, MI
Posts: 854
Total Cats: 14
Default

Originally Posted by Savington
Check your timing again. If you are running Jerry's basemap and the car will not rev, but it revs if you advance everything 10 degrees, something's wrong with the timing on the car itself. Check the orientation of the timing belt, ensure that your TDC marks are *actually* TDC marks (pull the plugs, spin the motor to TDC, compare marks), and ensure the timing belt is set correctly.
how is this possible when he says the trigger angle was cross-checked with the timing marks and a timing light?
The_Pipefather is offline  
Old 04-20-2008, 08:10 PM
  #43  
Former Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,442
Total Cats: 2,100
Default

Originally Posted by The_Pipefather
how is this possible when he says the trigger angle was cross-checked with the timing marks and a timing light?
1. Jerry's basemaps are correct
2. He dicks with his timing and the car runs better
3. He sets his timing up as it should be, and the car doesnt run

Logic tells me that if the basemaps are correct (which they are, 99% sure), then something with his car isn't correct. If your timing marks are off, or you are using the wrong mark, then you aren't going to be able to time the car right. Dollars to donuts, he's got the timing fucked up.
Savington is offline  
Old 04-20-2008, 08:11 PM
  #44  
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,659
Total Cats: 134
Default

Common on older engines for the harmonic balancer to get sloppy, hence incorrect timing values would be observed compared to actual. Would be odd for a new engine to have that problem, but if you've followed the timing set up in the manual correctly, then the timing problem is mechanical and not electrical. Are you positive you set the trigger angle correctly? If so, it's probably time to do the TDC dipstick test to see how you need to proceed.
__________________
Chief of Floor Sweeping, DIYAutoTune.com & AMP EFI
Crew Chief, Car Owner & Least Valuable Driver, HongNorrthRacing

91 Turbo | 10AE Turbo | 01 Track Rat | #323 Mazda Champcar

Originally Posted by concealer404
Buy an MSPNP Pro, you'll feel better.
Ben is offline  
Old 04-20-2008, 08:18 PM
  #45  
Junior Member
Thread Starter
iTrader: (3)
 
01TurboMiata's Avatar
 
Join Date: Aug 2007
Location: Panama City, FL.
Posts: 336
Total Cats: 0
Default

i did it correctly and well i guess it is time to check some of the mechanics, dont know if this may matter but my harmonic balancer does have a wobble to it..... =\
01TurboMiata is offline  
Old 04-21-2008, 02:38 AM
  #46  
Former Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,442
Total Cats: 2,100
Default

Originally Posted by 01TurboMiata
dont know if this may matter but my harmonic balancer does have a wobble to it..... =\
Are you ******* joking?
Savington is offline  
Old 04-21-2008, 09:42 AM
  #47  
Supporting Vendor
 
Matt Cramer's Avatar
 
Join Date: Sep 2006
Posts: 2,332
Total Cats: 67
Default

Like the others have said, your timing is off. If your harmonic balancer shows visible signs of wobbling, replace it ASAP. It is quite likely that the timing marks on the balancer have slipped far enough that they're giving you the wrong reading.
__________________
Matt Cramer
www.diyautotune.com
Matt Cramer is offline  
Old 04-21-2008, 11:36 AM
  #48  
Junior Member
Thread Starter
iTrader: (3)
 
01TurboMiata's Avatar
 
Join Date: Aug 2007
Location: Panama City, FL.
Posts: 336
Total Cats: 0
Default

yepp, it does wobble...... didnt think much of it at first.... its not bad but its noticable.... im going to call FM today, that would explain why the car works when the timing is advanced 20 degree's?

but its works fine with the stock ECU ?

or was i still just way off and the stock ECU didnt really give a **** ?
01TurboMiata is offline  
Old 04-21-2008, 11:45 AM
  #49  
Junior Member
Thread Starter
iTrader: (3)
 
01TurboMiata's Avatar
 
Join Date: Aug 2007
Location: Panama City, FL.
Posts: 336
Total Cats: 0
Default

ok well, i called FM and yepp the wobble aint good and my timing mark skipped on the balancer about mmmmm 10 degree's ?..... so well i guess im going to change it out and give it another try...... ahhhh!
01TurboMiata is offline  
Old 04-21-2008, 12:16 PM
  #50  
Junior Member
Thread Starter
iTrader: (3)
 
01TurboMiata's Avatar
 
Join Date: Aug 2007
Location: Panama City, FL.
Posts: 336
Total Cats: 0
Default

ok well pulled it off and layed it next to the other one i had and put the alignment holes in the same place and then looked and the timing marks and its off about 2 and a half inches...... Bad ? ....... well i found my problem then.
01TurboMiata is offline  
Old 04-21-2008, 01:04 PM
  #51  
Junior Member
Thread Starter
iTrader: (3)
 
01TurboMiata's Avatar
 
Join Date: Aug 2007
Location: Panama City, FL.
Posts: 336
Total Cats: 0
Default

FIX!!!!!! woohoo, now my car is just running rich but its drivable, time for some tuning!
01TurboMiata is offline  
Old 04-21-2008, 04:17 PM
  #52  
Elite Member
iTrader: (5)
 
Stealth97's Avatar
 
Join Date: Oct 2007
Location: Canton, Ga
Posts: 2,156
Total Cats: 66
Default

Originally Posted by 01TurboMiata
ok well pulled it off and layed it next to the other one i had and put the alignment holes in the same place and then looked and the timing marks and its off about 2 and a half inches...... Bad ? ....... well i found my problem then.
I had the same problem. My timing was only of by 16 degrees. I did not find out until the pulley came apart at 7,000 RPM. that was fun.
Stealth97 is offline  
Old 04-21-2008, 04:32 PM
  #53  
Former Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,442
Total Cats: 2,100
Default

Glad you fixed it. How new is that FM motor?
Savington is offline  
Old 04-21-2008, 05:02 PM
  #54  
Junior Member
Thread Starter
iTrader: (3)
 
01TurboMiata's Avatar
 
Join Date: Aug 2007
Location: Panama City, FL.
Posts: 336
Total Cats: 0
Default

umm no more than 1,200 miles on it......

and thank you everyone for your help!
01TurboMiata is offline  
Old 04-21-2008, 05:07 PM
  #55  
Former Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,442
Total Cats: 2,100
Default

Tell us more about that harmonic balancer. What brand? OEM, ATI, etc? Seeing a failure like that on a 1200 mile part is worrying.
Savington is offline  
Old 04-21-2008, 05:16 PM
  #56  
Junior Member
Thread Starter
iTrader: (3)
 
01TurboMiata's Avatar
 
Join Date: Aug 2007
Location: Panama City, FL.
Posts: 336
Total Cats: 0
Default

its from FM but its a OEM, it was just cleaned and painted..... they gave me a bad one........
01TurboMiata is offline  
Old 04-21-2008, 05:24 PM
  #57  
Elite Member
iTrader: (5)
 
Stealth97's Avatar
 
Join Date: Oct 2007
Location: Canton, Ga
Posts: 2,156
Total Cats: 66
Default

I'd be a bit pissed.
Stealth97 is offline  
Old 04-21-2008, 05:26 PM
  #58  
Junior Member
Thread Starter
iTrader: (3)
 
01TurboMiata's Avatar
 
Join Date: Aug 2007
Location: Panama City, FL.
Posts: 336
Total Cats: 0
Default

i am but i have two spare motors so what ever lol.
01TurboMiata is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
stoves
Suspension, Brakes, Drivetrain
5
04-21-2016 03:00 PM
Trent
WTB
2
10-01-2015 12:15 PM
mx592
Suspension, Brakes, Drivetrain
1
10-01-2015 12:45 AM



Quick Reply: My MSPNP 90-93 Thread



All times are GMT -4. The time now is 09:08 PM.