87 Jeep high Hydrocarbons- Emission Test

Reply

  #1  
Old 04-07-05, 11:40 AM
MJE49
Visiting Guest
Posts: n/a
87 Jeep high Hydrocarbons- Emission Test

I have a 1987 Jeep Cheerokee, 4 Cyl, 4 Speed with 189,000 miles. I just had an emissions test and it failed Hydrocarbons. The reading was 3.63 and the standard to pass was 2.20. CO tested 21.80 and passed ( std 55.0) and NOx tested 3.14 and passed ( std 3.50). Any suggestions on how to get the Hydrocarbons in line? Thanks

Jay
 
Sponsored Links
  #2  
Old 04-07-05, 03:43 PM
New guy's Avatar
Member
Join Date: Feb 2005
Posts: 435
bump up the idle a bit, keep it under 1400 rpm in park and try again.
 
Reply

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


Thread Tools
Search this Thread
Display Modes