DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Megasquirt PnP doesn't PnP nice

Thread Tools
 
Search this Thread
 
Old 04-04-2020, 02:02 PM
  #1  
Newb
Thread Starter
 
Okaydenami's Avatar
 
Join Date: Apr 2020
Location: Texas
Posts: 1
Total Cats: 0
Default Megasquirt PnP doesn't PnP nice

Hey guys, my boyfriend has a turbo '96, ran reliably enough but obviously it needs to be tuned. Finally got hands on a MS PnP ECU aaaand it doesn't want to idle. Had a number of people remote in and look at everything, they say the values look good enough to idle.

The car starts and runs great at a cold start but when it gets to temp, it doesn't want to continue idling and the AFR readings go off the chart. Maybe the startup enrichment is too high? Fairly new to the tuning game. Can't find any base maps just to get me started for the '96, the ones he can find don't want to jive with the ECU's software. Reading the manual, reading hundreds of other threads, and watching countless YouTube videos has only helped so much, so here I am trying my best to help him any way I can.
No idea what we're doing as far as tuning software goes, any support and help would be greatly appreciated. Spending hundreds of dollars to have some other schmuck do the whole thing really isn't an option.

Note: He does not have a innercooler yet but the car is running without a hood for now and the intake temps are good.
Okaydenami is offline  
Old 04-04-2020, 02:31 PM
  #2  
Elite Member
iTrader: (10)
 
Reverant's Avatar
 
Join Date: Jun 2006
Location: Athens, Greece
Posts: 5,984
Total Cats: 358
Default

Always tune the idle AFR when it it is the hottest. This may make the engine want to idle at 12:1 or something but this is ok as it won't make the car have a bad idle or bog. So drive it in traffic and let it really heatsoak, then tune so that it has a 14.7 idle while heatsoaked. When cold, let the EGO control take out fuel to bring it back to 14.7 (much better than getting the EGO trying to catchup by adding fuel, which is a losing game).
Reverant is offline  
Old 04-04-2020, 02:32 PM
  #3  
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 14,326
Total Cats: 1,181
Default

Attach a tune and log of it warming up, then we can help.
curly is offline  
Old 04-08-2020, 08:24 AM
  #4  
Moderator
iTrader: (12)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 20,813
Total Cats: 3,051
Default

Originally Posted by curly
Attach a tune and log of it warming up, then we can help.
This
sixshooter is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
slammedkouki
MEGAsquirt
3
11-18-2013 03:29 PM
Cody Strife
ECUs and Tuning
17
03-22-2010 08:24 AM
compuatic
MEGAsquirt
9
05-25-2008 10:56 AM
Saml01
MEGAsquirt
9
01-03-2008 09:03 PM



Quick Reply: Megasquirt PnP doesn't PnP nice



All times are GMT -4. The time now is 04:25 AM.