Calgary Jeep Association

4x4 Related Groups => Tech Talk => Topic started by: superspud on February 23, 2009, 11:30:53 PM

Title: weird idle after bosch 19 fuel injector install.
Post by: superspud on February 23, 2009, 11:30:53 PM
so i have a lumpy idle and slow acceleration after my install of 19# bosch injectors. anyone else have this problem?
driving me nuts, it has run properly a few times and when it does its awsome!. but most of the time not.
i also have a 62mm TB and ported intake

how do you resett he 95 yj computer? am i just running rich? would timing help? could a plug vacume line be the problem?

the jeep is a heep at the moment!
Title: Re: weird idle after bosch 19 fuel injector install.
Post by: barmanjay on February 24, 2009, 01:35:50 AM
Sounds like you might be running rich

try disconnecting the battery, and maybe advancing the timing?

Without a proper fuel management system to run better injectors and larger TB, it's hard to say what you can do make it run better. I don't know if the yj pcm can compensate for the rich running condition.
Title: Re: weird idle after bosch 19 fuel injector install.
Post by: superspud on February 24, 2009, 08:40:14 AM
how do you advance the timing?
Title: Re: weird idle after bosch 19 fuel injector install.
Post by: barmanjay on February 24, 2009, 11:17:32 PM
how do you advance the timing?

take the distributor,.. and turn it (1 bolt usually holds these in place - just undo and twist),.. you will need a timing light tho - which I happen to have ;)

I wouldn't go more than 1 or 2 degree's advanced
Title: Re: weird idle after bosch 19 fuel injector install.
Post by: JENSSEN on February 24, 2009, 11:40:11 PM
so i have a lumpy idle and slow acceleration after my install of 19# bosch injectors. anyone else have this problem?
driving me nuts, it has run properly a few times and when it does its awsome!. but most of the time not.
i also have a 62mm TB and ported intake

how do you resett he 95 yj computer? am i just running rich? would timing help? could a plug vacume line be the problem?

the jeep is a heep at the moment!

Check your connections on each injector, make sure you have power at the injector plugs and that each is locked down firmly ,.. I chased a simular problem on my XJ just before HRC 08 , my father in Law found one loose injector connection,..
Title: Re: weird idle after bosch 19 fuel injector install.
Post by: superspud on February 25, 2009, 12:48:15 AM
somtimes i find by messing around witht the connection i have partly fixed the prolem, but rarley do i get my full power back.