XJ6 & XJ12 Series I, II & III 1968-1992

85 Series 3 Inline 6 / 4.2 Mass Air flow Question

 
  #1  
Old 05-11-2019, 01:41 AM
Junior Member
Thread Starter
Join Date: Apr 2019
Location: Kansas City
Posts: 15
Likes: 0
Received 6 Likes on 4 Posts
Default 85 Series 3 Inline 6 / 4.2 Mass Air flow Question

Deleted

until coming up with a better picture from the S57 Doc

Thanks Doug for the tip
 

Last edited by Parker; 05-11-2019 at 10:23 PM.
  #2  
Old 05-11-2019, 03:05 PM
Veteran Member
Join Date: Mar 2008
Location: Pacific Northwest USA
Posts: 20,148
Received 6,548 Likes on 4,860 Posts
Default

What you're seeing, probably, is the 'cold running' modification, designed to prevent over-fueling when cold....although many have reported a general improvement in behavior hot or cold

XJ 6 Series III 4.2 - Cold Start EFI Overfuelling

I suggest using the wiring diagrams from the S57 Wiring Guide. It's in one of the sticky threads at the top of this section

Cheers
DD
 
  #3  
Old 05-12-2019, 11:51 AM
Junior Member
Thread Starter
Join Date: Apr 2019
Location: Kansas City
Posts: 15
Likes: 0
Received 6 Likes on 4 Posts
Default

Can't find S57 wiring guide that opens up to get to the MAF diagram

I did see the TSB on Cold Start EFI Over fueling on pin 6 and 8 with a 100uF capacitor
 
  #4  
Old 05-12-2019, 01:45 PM
Member
Join Date: Dec 2018
Location: NC
Posts: 32
Received 7 Likes on 6 Posts
Default

Hi, here are the links to Jose's main site ( the guide is under the "contact/manuals/links tab at bottom ).
Jag Upgrades Home

Here's the direct link to the manual download.

https://static.secure.website/wscfus...ries-3-xj6.pdf

All thanks to Jose, nice to have a digital version to backup my paper copy purchased years ago.

Cheers !
Brian
 
The following 2 users liked this post by kudzu:
LT1 jaguar (05-12-2019), yachtmanbuttson (05-13-2019)
  #5  
Old 05-12-2019, 10:44 PM
Junior Member
Thread Starter
Join Date: Apr 2019
Location: Kansas City
Posts: 15
Likes: 0
Received 6 Likes on 4 Posts
Default

Thanks Kudzu ,

Found the area of interest on page 53

which will make a much better picture
 

Last edited by Parker; 05-12-2019 at 10:47 PM.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Steve Mileman
XF (X260)
0
02-20-2018 07:02 AM
Spurlee
XK8 / XKR ( X100 )
16
02-10-2011 10:15 AM
Greg561
S-Type / S type R Supercharged V8 ( X200 )
6
05-14-2009 02:27 PM
Spurlee
XK8 / XKR ( X100 )
2
04-29-2009 09:51 PM
Xistnnn
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
6
02-27-2009 12:58 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Quick Reply: 85 Series 3 Inline 6 / 4.2 Mass Air flow Question


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: