• Announcements

    • Mopar1973Man

      Google Authenticator   04/23/2017

      Mopar1973Man.Com will now start using two-factor authentication to protect users accounts. All staff, donors, and customers will be required to use the Google Authenticator which you can download for free. Just scan the QR barcode and the app will provide the lock code. If you attempt to guess the code it will lock you out of the site. So please don't guess at the code. This will only appear to users that are accessing mission critical data to the member or the site.   I also enable the question and answers. If anyone has other ideas for question please PM to me and I'll add them to the system as well. The Question and Answers work similar and you must answer the questions to gain access to a protected area.  

Archived

This topic is now archived and is closed to further replies.

semo cummins rookie

power vs. fuel mileage trouble

9 posts in this topic

hey im new to the cummins pickup world and im just wanting some advise on what ive done wrong on adjusting my starwheel and fuel screw i turned the fs in almost all the way and the starwheel up about ten to fifteen clicks and now fuel mileage is about half of what it was before like 8.5mpg not loaded

Share this post


Link to post
Share on other sites

hello and welcome to the site!:thumb1:

1 person likes this

Share this post


Link to post
Share on other sites

Welcome to the site!! There are a lot of knowledgable guys on here.

1 person likes this

Share this post


Link to post
Share on other sites

welcome. you will enjoy it here. lots of knowledge to share.

Share this post


Link to post
Share on other sites

hey im new to the cummins pickup world and im just wanting some advise on what ive done wrong on adjustong my starwheel and fuel screw i turned the fs in almost all the way and the starwheel up about ten to fifteen clicks and now fuel milage is about half of what it was before like 8.5mpg not loaded

Welcome to the site.. I think you are in the wrong section....this is 24-valve powertrain related section

Check over in the 12-valve powertrain related section,..i am sure someone over there can help you out...

Richie:thumbup2:

Share this post


Link to post
Share on other sites

Your problem is the fuel screw. After you adjusted it you are dumping lots more fuel in at low boost than you should. Truck smokes at low rpms doesn't it? Try backing off the fuel screw some and see what happens.

Share this post


Link to post
Share on other sites

maybe just a puff but not continous on the smoke but ill try backing it off bout half of what i turned it to see what happens.... but the exhaust smells pretty rich now that i think of it

Share this post


Link to post
Share on other sites