ok i have some cheep after market ac autotechnic gauges. I have an oil pressure, oil temp and water temp gauge. Everythign is wired right but the gauges are not reading right. For example if the oil temp reads 160 with the engine off. It will realt 10 degrees more with the engine on. Another 20 degrees more with the ac on another 10-20 more with the light or high beams on. Same thing goes for the water temp and oil pressure. what is going on??

 

get better guages..! probably faulty guages or sensors would be my guess

 

yeh i would get better gauges, plus the only gauges you really need are AFR, Boost, Oil Pressure... all the others are pretty much a waste

 

new sending units?

 

Perhaps a bad ground? I'm always iffy about electrical gauges so went with mechanical on my car. But yeah I would get a decent set of gauges. Wouldn't want false info displaying while you are driving.

 

Probably since there cheap guages, the sender units are either bad, bad ground ot just busted *** gauges!

Get better ones, like something that might be usefull for your car like wideband, a boost gauge and an oil pressure guage. Those are the most important IMO...

 

Sounds like either the power or grounds are bad if they are all doing it.

I'll second the statement that you should throw those away and get some real gauges.

 

get rid of that dod doo the cheapest gauges i would purchase, prosport.com

 

AEM or nothing lol

 

Prosport= Made in Taiwan. Get USA or Japan made gauges if you want good ones. As far as your problems, ground on the engine and DO NOT use teflon tape on the sending units. Sending units ground themselves to the block .

 

The Stewart Warner, STRI, Defi's are all nice gauges.

 

still has not been answered....where did you ground?

 

i tryed even running the grond off the battery and it still does it so i have no idea what wrong
i dont think its the gauges because they worked in my other car.