Microtech Area is for discussing Microtech systems

Microtech Fuel loadup at low RPM????

Old 12-15-08, 07:19 AM
  #1  
Full Member
Thread Starter
iTrader: (2)
 
Join Date: Apr 2008
Location: CT
Posts: 127
Likes: 0
Received 0 Likes on 0 Posts
Fuel loadup at low RPM????

I have a lt10s with x4 ignitor and Moroso coils. The car ran fine with A/F at 11.4 to 11.9 under boost and 12.8 to 13.4 at idle and low load running. So a couple of days ago the car just stalled when I went to pull in to my driveway. I started it back up and it was running very rich. It will clear up if I rev it but as I let off, it loads up and stalls.
List:
Have controller and wideband
Checked all wiring OK
Changed 02
Could not pull fuel out to make it run right
Changed plugs
Coils and wires are new with good spark
A/F are reading 11.4 to 10.8 at low RPM on both controller and wideband
TPS appears to be sound

I would like some help as to where else to look or if anyone has had this problem. I wonder if the computer has gone bad?
Thanks in advance for reading,
Glen
glennyd70 is offline  
Old 12-15-08, 06:33 PM
  #2  
Rotary Freak
iTrader: (8)
 
rx72c's Avatar
 
Join Date: Jun 2003
Location: Australia
Posts: 2,608
Likes: 0
Received 0 Likes on 0 Posts
Computer dosnt go bad.


You need to check your fuel pressure and tell us where that is.
What makes you think the car is running rich? just the wideband?
it sounds like one of your injectors getting stuck?

Have you checked your earths to see if they are coming loose?
rx72c is offline  
Old 12-16-08, 06:29 AM
  #3  
Full Member
Thread Starter
iTrader: (2)
 
Join Date: Apr 2008
Location: CT
Posts: 127
Likes: 0
Received 0 Likes on 0 Posts
fuel loadup

My fuel pressure is the same from when I installed the motor, 38lbs. I pulled one of the primary injector connectors and it would not start. I guess I should do the same with the other. I also checked my TPS to make sure it was not jumping into the load map but it was right.
glennyd70 is offline  
Old 12-16-08, 07:30 AM
  #4  
Senior Member
5 Year Member
iTrader: (2)
 
Join Date: Nov 2007
Location: EastCoast , Florida
Posts: 382
Likes: 0
Received 0 Likes on 0 Posts
Like rx72c said one of your injectors is stuck open .
13BT_Starlet is offline  
Old 12-16-08, 04:17 PM
  #5  
Rotary Freak
iTrader: (8)
 
rx72c's Avatar
 
Join Date: Jun 2003
Location: Australia
Posts: 2,608
Likes: 0
Received 0 Likes on 0 Posts
Pull all your injectors out. ANd get them checked to make sure they are not leaking etc.

ANd then we go from their.
Troubleshooting process can be time consuming and expensive, but it has to be done, and you have to eliminate an item before you move onto the next.
rx72c is offline  
Old 12-16-08, 05:43 PM
  #6  
Full Member
Thread Starter
iTrader: (2)
 
Join Date: Apr 2008
Location: CT
Posts: 127
Likes: 0
Received 0 Likes on 0 Posts
fuel loadup

Thanks so much guys. I am on it. I will stay in touch
Glen
glennyd70 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bb6guy
Old School and Other Rotary
10
10-01-18 08:07 AM
Queppa
New Member RX-7 Technical
8
09-02-18 09:53 AM
stickmantijuana
Microtech
30
04-23-16 06:37 PM
armans
3rd Generation Specific (1993-2002)
5
08-15-15 09:08 PM
bb6guy
3rd Generation Specific (1993-2002)
3
08-12-15 03:29 PM


Thread Tools
Search this Thread
Quick Reply: Microtech Fuel loadup at low RPM????


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: