rpm activated switch

**dpinson** · 09-29-2007, 07:46 AM

the guy at jegs said that the regular msd rpm switch with the on and off would work for my 01 but i cant get it to activate and the n20 system operated when i set the wot switch, do ineed the one thAT says dis/rpm

**sunsetorangess** · 10-10-2007, 06:17 PM

Not sure if its an option on the msd switches, but i picked up a Hsw switch and i had to put it to 4cyln mode to get it to activate and its been good to go since then.
J

**mrr23** · 10-10-2007, 06:24 PM

for LSx equipped vehicles, it needs to be set for 4 cylinders.

**Chaos** · 10-12-2007, 10:19 AM

been a long time since I installed mine, isn't it a wire loop that you have to cut? can't remember

**LS2Tuner** · 10-12-2007, 10:22 AM

Originally Posted by mrr23

for LSx equipped vehicles, it needs to be set for 4 cylinders.

Correct!

Yes there is a couple loops. I cut makes it a 6 cyl 2 makes it 4.

CYLINDER PROGRAMMING
The Switch is programmed for 8-cylinder applications, however it can be used with 4 or 6-
cylinder applications. To program the Switch for different applications, the cylinder select
loops must be modified as shown in Figure 2. After cutting a wire loop, seal the wire end
with the supplied heat-shrink caps. Use a heat gun or other heat source to shrink the cap
for a good seal.