Power key switch question
 

Can someone please confirm that the power switch, switches negative?
Pulled my switch out and apart, thinking there maybe a problem, as my full power does not light up in the dash panel and my secondaries do NOT work.
Switch works fine so l put a test lamp on the connector plug on the back of the switch with the ignition on. No power at either side of the plug ( so lm thinking it switches negative?)
If this is all correct and working, why no light on the dash panel?
Help please

Cheers from down under 🇦🇺
Russell

Re: Power key switch question
 

What year is your ZR-1? The Power Switch for 1990 is different from 1991-1995.

Jim

Re: Power key switch question
 

Perhaps the bulb in the DIS is burnt out?

Is there a noticeable difference between the lower power setting and the high power setting?
It will be obvious if your secondaries are working or not.

'Crabs

Re: Power key switch question
 

The car is 1990, #1948. 11k Miles

Re: Power key switch question
 

Problem is l don’t have another ZR-1 to compare it to. Few and far between over here in OZ. But after being on this forum for the last couple of years and reading all the different posts about how mighty the LT5 is, mine must have a problem somewhere. Average of the mark and won’t pull past 5k revs. Nice to drive but not living up to the ZR-1 reputation .

Re: Power key switch question
 

recommended reading: http://www.zr1specialist.com/HAT%20W...%20Working.pdf

Power key switch question
 

If the vacuum line accidentally came apart, it would give you the poor power feeling.

The valet parking switch (LT5), located on the accessory trim plate, sends a signal to the ECM. With the key in the “NORMAL" position one set of injectors operate while the “FULL" position activates a second set of injectors, a second fuel pump and a second throttle plate which increases engine power. Key may be removed only in the “NORMAL" position.

I’d check your fuses and a possible broken wire or loose connection. There should be power to the key, which will light up the Full on the display and the secondary injectors. When you get that light working, the ZR-1 will light you up on FULL throttle!


Sent from my iPhone using ZR-1 Net Registry

Re: Power key switch question
 

Ozruss90 : This may help.

Re: Power key switch question
 

Thanks Lou and Geezer.
If it is just a fuse, then I’ll be rapt. Been thinking my problem was under the plenum all this time. Not sure where to locate the suspect fuse . All the fuses in the main fuse block on passenger end of the dash seem ok. Is the fuse for the valet/power switch somewhere else? Not sure where to look.

Cheers
Russell

Re: Power key switch question
 

Russell: Valet switch shares the CCM fuse (10 amp) Main Fuse Block-- along with O2 sensors, rear defog, AC clutch relay,heater & A/C programmer