2 bar map sensor Options

[jesterwr217]

ok im currently using check valves and im wondering what i have to do to put a 2 bar map sensor on just take out the map sensor and put the new one in and replace the check valves with regular vac hosing? and i have an safc 2 what do i need to change on it so my ecu isnt all screwed up? and if anyone has a link to somewhere i can buy one that would be great

[jesterwr217]

im using the 2nd gen mr2
im just adjusting the fuel at idle i havnt driven it yet but when i added the fuel it idled smoothly but my wideband is all the way red??

[presure2]

im using the 2nd gen mr2
im just adjusting the fuel at idle i havnt driven it yet but when i added the fuel it idled smoothly but my wideband is all the way red??

if your "wideband" dont give you an exact A/F ratio #, then its NOT a wideband.
those "lightshow" regular o2 sensors are pretty much usless for tuning.

[jesterwr217]

im using the 2nd gen mr2
im just adjusting the fuel at idle i havnt driven it yet but when i added the fuel it idled smoothly but my wideband is all the way red??

if your "wideband" dont give you an exact A/F ratio #, then its NOT a wideband.
those "lightshow" regular o2 sensors are pretty much usless for tuning.

its been perfect since i put it in and it IS a wideband its the aem wideband uego

[presure2]

im using the 2nd gen mr2
im just adjusting the fuel at idle i havnt driven it yet but when i added the fuel it idled smoothly but my wideband is all the way red??

if your "wideband" dont give you an exact A/F ratio #, then its NOT a wideband.
those "lightshow" regular o2 sensors are pretty much usless for tuning.

its been perfect since i put it in and it IS a wideband its the aem wideband uego

well, what is the number your getting at idle?

you SHOULD be lean under lo-throttle, off boost conditions.
as your approaching boost, and into boost, you should be 11.5:1
everywhere off boost you wanna be between 14-15:1

[jesterwr217]

im using the 2nd gen mr2
im just adjusting the fuel at idle i havnt driven it yet but when i added the fuel it idled smoothly but my wideband is all the way red??

if your "wideband" dont give you an exact A/F ratio #, then its NOT a wideband.
those "lightshow" regular o2 sensors are pretty much usless for tuning.

its been perfect since i put it in and it IS a wideband its the aem wideband uego

well, what is the number your getting at idle?

you SHOULD be lean under lo-throttle, off boost conditions.
as your approaching boost, and into boost, you should be 11.5:1
everywhere off boost you wanna be between 14-15:1

b4 i put the new map in it was at 15 now its pegged out past 18

[presure2]

im using the 2nd gen mr2
im just adjusting the fuel at idle i havnt driven it yet but when i added the fuel it idled smoothly but my wideband is all the way red??

if your "wideband" dont give you an exact A/F ratio #, then its NOT a wideband.
those "lightshow" regular o2 sensors are pretty much usless for tuning.

its been perfect since i put it in and it IS a wideband its the aem wideband uego

well, what is the number your getting at idle?

you SHOULD be lean under lo-throttle, off boost conditions.
as your approaching boost, and into boost, you should be 11.5:1
everywhere off boost you wanna be between 14-15:1

b4 i put the new map in it was at 15 now its pegged out past 18

your running supra injectors, right?
315cc, not quite as big as they should be to jive 100% with the 2 bar map is my guess.
see, with the 2 bar map, its basicly a balancing act of getting in big enough injectors to have pleanty of fuel up top, while still being able to tune out the richness you normally get in the low end.
are you using the stock FPR ect?
i never had the wideband sensor in when i had the 315cc injectors in my car, so i cant tell ya how lean i was at idle, but at the dyno i used one, and with how lean i was everywhere else, including in boost ( i was as lean as 17:1 in boost before tuning)

[jesterwr217]

im using the 2nd gen mr2
im just adjusting the fuel at idle i havnt driven it yet but when i added the fuel it idled smoothly but my wideband is all the way red??

if your "wideband" dont give you an exact A/F ratio #, then its NOT a wideband.
those "lightshow" regular o2 sensors are pretty much usless for tuning.

its been perfect since i put it in and it IS a wideband its the aem wideband uego

well, what is the number your getting at idle?

you SHOULD be lean under lo-throttle, off boost conditions.
as your approaching boost, and into boost, you should be 11.5:1
everywhere off boost you wanna be between 14-15:1

b4 i put the new map in it was at 15 now its pegged out past 18

your running supra injectors, right?
315cc, not quite as big as they should be to jive 100% with the 2 bar map is my guess.
see, with the 2 bar map, its basicly a balancing act of getting in big enough injectors to have pleanty of fuel up top, while still being able to tune out the richness you normally get in the low end.
are you using the stock FPR ect?
i never had the wideband sensor in when i had the 315cc injectors in my car, so i cant tell ya how lean i was at idle, but at the dyno i used one, and with how lean i was everywhere else, including in boost ( i was as lean as 17:1 in boost before tuning)

well i was readn up and it seems those arent good injectors so i took em out and put the stock ones in (which do i need) and im using a 12:1 vortech fmu stock fpr stock injectors and apexi safc 2

[presure2]

im using the 2nd gen mr2
im just adjusting the fuel at idle i havnt driven it yet but when i added the fuel it idled smoothly but my wideband is all the way red??

if your "wideband" dont give you an exact A/F ratio #, then its NOT a wideband.
those "lightshow" regular o2 sensors are pretty much usless for tuning.

its been perfect since i put it in and it IS a wideband its the aem wideband uego

well, what is the number your getting at idle?

you SHOULD be lean under lo-throttle, off boost conditions.
as your approaching boost, and into boost, you should be 11.5:1
everywhere off boost you wanna be between 14-15:1

b4 i put the new map in it was at 15 now its pegged out past 18

your running supra injectors, right?
315cc, not quite as big as they should be to jive 100% with the 2 bar map is my guess.
see, with the 2 bar map, its basicly a balancing act of getting in big enough injectors to have pleanty of fuel up top, while still being able to tune out the richness you normally get in the low end.
are you using the stock FPR ect?
i never had the wideband sensor in when i had the 315cc injectors in my car, so i cant tell ya how lean i was at idle, but at the dyno i used one, and with how lean i was everywhere else, including in boost ( i was as lean as 17:1 in boost before tuning)

well i was readn up and it seems those arent good injectors so i took em out and put the stock ones in (which do i need) and im using a 12:1 vortech fmu stock fpr stock injectors and apexi safc 2

well, no wonder why your so lean. you NEED to be using larger injectors with the 2 bar map.
the FMU is gonna help you blow your motor, and thats all. take it out.
get at the minimum 315cc supra injectors (no, not the 440cc LOW impedance ones celiracer suggested you had.) on an ST, i would try the 315s first (i think i may have a set of 4 of these if you really need them)
and try to have a set of 360s, or somthing a little larger just in case.
the 315cc injectors will provide enough fuel for ~190whp.
that should be more than enough to get you up and running @ low- medium (5-8psi or so) boost.

[jesterwr217]

im using the 2nd gen mr2
im just adjusting the fuel at idle i havnt driven it yet but when i added the fuel it idled smoothly but my wideband is all the way red??

if your "wideband" dont give you an exact A/F ratio #, then its NOT a wideband.
those "lightshow" regular o2 sensors are pretty much usless for tuning.

its been perfect since i put it in and it IS a wideband its the aem wideband uego

well, what is the number your getting at idle?

you SHOULD be lean under lo-throttle, off boost conditions.
as your approaching boost, and into boost, you should be 11.5:1
everywhere off boost you wanna be between 14-15:1

b4 i put the new map in it was at 15 now its pegged out past 18

your running supra injectors, right?
315cc, not quite as big as they should be to jive 100% with the 2 bar map is my guess.
see, with the 2 bar map, its basicly a balancing act of getting in big enough injectors to have pleanty of fuel up top, while still being able to tune out the richness you normally get in the low end.
are you using the stock FPR ect?
i never had the wideband sensor in when i had the 315cc injectors in my car, so i cant tell ya how lean i was at idle, but at the dyno i used one, and with how lean i was everywhere else, including in boost ( i was as lean as 17:1 in boost before tuning)

well i was readn up and it seems those arent good injectors so i took em out and put the stock ones in (which do i need) and im using a 12:1 vortech fmu stock fpr stock injectors and apexi safc 2

well, no wonder why your so lean. you NEED to be using larger injectors with the 2 bar map.
the FMU is gonna help you blow your motor, and thats all. take it out.
get at the minimum 315cc supra injectors (no, not the 440cc LOW impedance ones celiracer suggested you had.) on an ST, i would try the 315s first (i think i may have a set of 4 of these if you really need them)
and try to have a set of 360s, or somthing a little larger just in case.
the 315cc injectors will provide enough fuel for ~190whp.
that should be more than enough to get you up and running @ low- medium (5-8psi or so) boost.

i have the 315's too i chose to put the others in i guess i should change that lol but i had a friend put them in and idk how to put them in cause the bolts are blocked by the intake manifold which idk how to get off help would be great with this and whats this about the fmu i should just take it off and run w/o one the stock fpr and the bigger injectors with the safc2 and i should be fine?? and just to make sure the 315's are the lime green tops correct?

This post has been edited by jesterwr217: Jul 22, 2007 - 4:00 PM