Good job on the site and the jeep!


"Brent Bogrees" <bogrees.1@osu.edu> wrote in message
news:6a04cef7.0402240915.6095a325@posting.google.c om...
> I have finished swapping a '98 XJ 4.0L engine, tranny, and t.case into
> my '89 YJ (it was a 2.5L). I wrote an article covering the swap for
> anyone who is interested. Ten years newer technology and a bigger
> engine are sweet!
> http://www.chrr.ohio-state.edu/~bogr...ch/40swap.html
>
> -Brent Bogrees
> '89 YJ 4.0L w/ 33" BFG MT's
> '94 XJ 4.0L w/ 31" BFG AT's
> http://www.chrr.ohio-state.edu/~bogrees/html/Jeep.html

 

Good job on the site and the jeep!


"Brent Bogrees" <bogrees.1@osu.edu> wrote in message
news:6a04cef7.0402240915.6095a325@posting.google.c om...
> I have finished swapping a '98 XJ 4.0L engine, tranny, and t.case into
> my '89 YJ (it was a 2.5L). I wrote an article covering the swap for
> anyone who is interested. Ten years newer technology and a bigger
> engine are sweet!
> http://www.chrr.ohio-state.edu/~bogr...ch/40swap.html
>
> -Brent Bogrees
> '89 YJ 4.0L w/ 33" BFG MT's
> '94 XJ 4.0L w/ 31" BFG AT's
> http://www.chrr.ohio-state.edu/~bogrees/html/Jeep.html

 

Good job on the site and the jeep!


"Brent Bogrees" <bogrees.1@osu.edu> wrote in message
news:6a04cef7.0402240915.6095a325@posting.google.c om...
> I have finished swapping a '98 XJ 4.0L engine, tranny, and t.case into
> my '89 YJ (it was a 2.5L). I wrote an article covering the swap for
> anyone who is interested. Ten years newer technology and a bigger
> engine are sweet!
> http://www.chrr.ohio-state.edu/~bogr...ch/40swap.html
>
> -Brent Bogrees
> '89 YJ 4.0L w/ 33" BFG MT's
> '94 XJ 4.0L w/ 31" BFG AT's
> http://www.chrr.ohio-state.edu/~bogrees/html/Jeep.html

 

I have kept the emissions control system intact, so I think I am good
there. I also have a diagnostic code reader, and it reports that the
MIL is off. But this is irrelevant because I live in Columbus, and
thankfully we are free of smog *****. ;)

-Brent Bogrees
'89 YJ 4.0L w/ 33" BFG MT's
'94 XJ 4.0L w/ 31" BFG AT's
http://www.chrr.ohio-state.edu/~bogrees/html/Jeep.html


L.W.(ßill) ------ III <----------@***.net> wrote in message news:<403BA397.F7386B24@***.net>...
> Bookmarked. How do you think you will do with the SMOG *****?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>

 

I have kept the emissions control system intact, so I think I am good
there. I also have a diagnostic code reader, and it reports that the
MIL is off. But this is irrelevant because I live in Columbus, and
thankfully we are free of smog *****. ;)

-Brent Bogrees
'89 YJ 4.0L w/ 33" BFG MT's
'94 XJ 4.0L w/ 31" BFG AT's
http://www.chrr.ohio-state.edu/~bogrees/html/Jeep.html


L.W.(ßill) ------ III <----------@***.net> wrote in message news:<403BA397.F7386B24@***.net>...
> Bookmarked. How do you think you will do with the SMOG *****?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>

 

I have kept the emissions control system intact, so I think I am good
there. I also have a diagnostic code reader, and it reports that the
MIL is off. But this is irrelevant because I live in Columbus, and
thankfully we are free of smog *****. ;)

-Brent Bogrees
'89 YJ 4.0L w/ 33" BFG MT's
'94 XJ 4.0L w/ 31" BFG AT's
http://www.chrr.ohio-state.edu/~bogrees/html/Jeep.html


L.W.(ßill) ------ III <----------@***.net> wrote in message news:<403BA397.F7386B24@***.net>...
> Bookmarked. How do you think you will do with the SMOG *****?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>

 

Thanks. My Dad has been instrumental in teaching me the vast realm of
auto mechanics for the past 18 months. It is crazy how much I have
learned and accomplished with my Jeep. It is an empowering feeling to
be driving something you know so well.

For the O2 sensors, I bought an exhaust pipe (manifold to cat) for a
4.0L YJ, so I just plugged the upstream O2 sensor in that pipe. The
downstream O2 sensor is supposed to plug into the cat, but the YJ cat
doesn't have an O2 hole like the '98 XJ. The only thing the downstream
O2 sensor does (to my knowledge) is detect if your cat is bad or not
by measuring the difference between the upstream and downstream O2's.
So I just plugged the wires in for the downstream O2, and tied the
sensor out of the way. This way, I don't have to mount the sensor, and
the computer will always think the cat is good.

-Brent Bogrees
'89 YJ 4.0L w/ 33" BFG MT's
'94 XJ 4.0L w/ 31" BFG AT's
http://www.chrr.ohio-state.edu/~bogrees/html/Jeep.html


"William Oliveri" <wuji@bigvalley.net> wrote in message news:<c1gcge$1fcrg1$1@ID-193866.news.uni-berlin.de>...
> Looks like you have a nice shop and a cool dad.
>
> Nice article.
>
>
> BTW, where did you put the O2 Sensor?
>
> Thanks,
>
> bill
>

 

Thanks. My Dad has been instrumental in teaching me the vast realm of
auto mechanics for the past 18 months. It is crazy how much I have
learned and accomplished with my Jeep. It is an empowering feeling to
be driving something you know so well.

For the O2 sensors, I bought an exhaust pipe (manifold to cat) for a
4.0L YJ, so I just plugged the upstream O2 sensor in that pipe. The
downstream O2 sensor is supposed to plug into the cat, but the YJ cat
doesn't have an O2 hole like the '98 XJ. The only thing the downstream
O2 sensor does (to my knowledge) is detect if your cat is bad or not
by measuring the difference between the upstream and downstream O2's.
So I just plugged the wires in for the downstream O2, and tied the
sensor out of the way. This way, I don't have to mount the sensor, and
the computer will always think the cat is good.

-Brent Bogrees
'89 YJ 4.0L w/ 33" BFG MT's
'94 XJ 4.0L w/ 31" BFG AT's
http://www.chrr.ohio-state.edu/~bogrees/html/Jeep.html


"William Oliveri" <wuji@bigvalley.net> wrote in message news:<c1gcge$1fcrg1$1@ID-193866.news.uni-berlin.de>...
> Looks like you have a nice shop and a cool dad.
>
> Nice article.
>
>
> BTW, where did you put the O2 Sensor?
>
> Thanks,
>
> bill
>

 

Thanks. My Dad has been instrumental in teaching me the vast realm of
auto mechanics for the past 18 months. It is crazy how much I have
learned and accomplished with my Jeep. It is an empowering feeling to
be driving something you know so well.

For the O2 sensors, I bought an exhaust pipe (manifold to cat) for a
4.0L YJ, so I just plugged the upstream O2 sensor in that pipe. The
downstream O2 sensor is supposed to plug into the cat, but the YJ cat
doesn't have an O2 hole like the '98 XJ. The only thing the downstream
O2 sensor does (to my knowledge) is detect if your cat is bad or not
by measuring the difference between the upstream and downstream O2's.
So I just plugged the wires in for the downstream O2, and tied the
sensor out of the way. This way, I don't have to mount the sensor, and
the computer will always think the cat is good.

-Brent Bogrees
'89 YJ 4.0L w/ 33" BFG MT's
'94 XJ 4.0L w/ 31" BFG AT's
http://www.chrr.ohio-state.edu/~bogrees/html/Jeep.html


"William Oliveri" <wuji@bigvalley.net> wrote in message news:<c1gcge$1fcrg1$1@ID-193866.news.uni-berlin.de>...
> Looks like you have a nice shop and a cool dad.
>
> Nice article.
>
>
> BTW, where did you put the O2 Sensor?
>
> Thanks,
>
> bill
>