Wiring help please on wiring holley sniper to hei and tach and ac questions
Rustkill
Jeeper
- Posts
- 31
- Solutions
- 1
- Thanks
- 9
- Location
- charleston sc and wilmington nc
- Vehicle(s)
- 1985 CJ7 258 engine.
Help please. confused by a few things.
and please know--- i am very stupid so ----
what i got--- 85 CJ7 - AMC 258 i6 / 4.2l - installing holley sniper - intalled hei dist. -- new painless harness
1 - holley says to find a clean 12 volt switched ignition source for the pick wire.--- can i use the electric choke red wire 954 from painless as the clean source. it says its a switched ignition source ( power on/run position). as there is not a choke anymore??
2 hei / tach connections ---
using a speedhut tach. has yellow wire tach signal
hei has a green wire (coil -)
sniper has yellow wire ( coil -) and dark brown wire to tach---
painless harness has purple wire 923 ( coil -) engine bay and purple wire dash side.
connections --options 1
speed hut gauge -yellow to dark brown from sniper. may have to add msd tach adator ?? yes no ?
then yellow sniper coil - to HEI green wire.
leaving out the painless harness
option 2 seems more correct?
speed hut yellow to harness purple dash side
harness purple engine side to sniper dark brown
sniper yellow to HEI green.
still may need to at the msd adaptor?
option 3 dont use the sniper tach wires at all
just go yellow to purple harness dash side then purple engine side to green HEI? if this options maybe still need the msd adaptor ? and would leaving the sniper out of the loop be bad for the sniper?
and then this question.
also adding jeep air. question about the holley sniper / ac
sniper has orange wire ( groung triggered a/c relay and grey wire ( ground side trigger of a/c shutdown relay.
jeep air has yellow/black ground wire
blue wire fused- blower motor wire to hot wire under dash only in run
black wire through fire wall to dryer and compressor.
painless wiring harness has brown wire 902 a/c compressor activation. engine side.
brown wire 902 a/c compressor activation dash side.
option 1
a/c inside hook blue fused wire to 902 brown a/c compressor wire dash side. and not hook up sniper wiring at all.
option 2
hook up sniper wiring not sure how to list this just confused
there is one black wire from ac through firewall does have a t-off to compressor.
sniper orange and grey wire. but where to put them?
i will call sniper and jeep air nextweek. but any help / understanding would be appreciated.
in charleston sc if anyone close is bored !!
trying to make everything run as best that it can.
thank you
and please know--- i am very stupid so ----
what i got--- 85 CJ7 - AMC 258 i6 / 4.2l - installing holley sniper - intalled hei dist. -- new painless harness
1 - holley says to find a clean 12 volt switched ignition source for the pick wire.--- can i use the electric choke red wire 954 from painless as the clean source. it says its a switched ignition source ( power on/run position). as there is not a choke anymore??
2 hei / tach connections ---
using a speedhut tach. has yellow wire tach signal
hei has a green wire (coil -)
sniper has yellow wire ( coil -) and dark brown wire to tach---
painless harness has purple wire 923 ( coil -) engine bay and purple wire dash side.
connections --options 1
speed hut gauge -yellow to dark brown from sniper. may have to add msd tach adator ?? yes no ?
then yellow sniper coil - to HEI green wire.
leaving out the painless harness
option 2 seems more correct?
speed hut yellow to harness purple dash side
harness purple engine side to sniper dark brown
sniper yellow to HEI green.
still may need to at the msd adaptor?
option 3 dont use the sniper tach wires at all
just go yellow to purple harness dash side then purple engine side to green HEI? if this options maybe still need the msd adaptor ? and would leaving the sniper out of the loop be bad for the sniper?
and then this question.
also adding jeep air. question about the holley sniper / ac
sniper has orange wire ( groung triggered a/c relay and grey wire ( ground side trigger of a/c shutdown relay.
jeep air has yellow/black ground wire
blue wire fused- blower motor wire to hot wire under dash only in run
black wire through fire wall to dryer and compressor.
painless wiring harness has brown wire 902 a/c compressor activation. engine side.
brown wire 902 a/c compressor activation dash side.
option 1
a/c inside hook blue fused wire to 902 brown a/c compressor wire dash side. and not hook up sniper wiring at all.
option 2
hook up sniper wiring not sure how to list this just confused
there is one black wire from ac through firewall does have a t-off to compressor.
sniper orange and grey wire. but where to put them?
i will call sniper and jeep air nextweek. but any help / understanding would be appreciated.
in charleston sc if anyone close is bored !!
trying to make everything run as best that it can.
thank you
