Vtec kicks in - Rev cuts out

**F20C** · 18-06-2009 04:02 PM

mine cuts out before vtec, isnt it ment to when its cold to protect your engine? as its not engaging in vtec? and its not doing harm reving to anything below that anyway?

**CRXer** · 18-06-2009 04:25 PM

what if u just manually powered the solenoid john & did a quick oil pressure check at high rpm in the driveway,would that work?

**ECU-MAN** · 19-06-2009 08:46 AM

Originally Posted by CRXer

what if u just manually powered the solenoid john & did a quick oil pressure check at high rpm in the driveway,would that work?

Iv done that before and it works, as long as you disconect the VTEC sol fist and dont drive it real hard. ( wrong maps for the hi cam profile )

**JAP-S2K** · 18-06-2009 05:27 PM

You build maximum oil pressure by about 3 grand. No need to rev it high. Sounds like a thermostat, either stuck open or it's got an aftermarket thermostat that opens at like 73deg. I fitted one of these to mine, and under normal cruising condition's late on a cold night water temps get as low as 65deg and it goes from three bars to two. The cold start has kicked in once. Seeing you live in canberra, there's a good chance that's it. Mine didn't make it to vtec though, it cut out as per normal when it's cold.

Do you have a CAI?

**KruZzN** · 18-06-2009 08:03 PM

Originally Posted by JAP-S2K

You build maximum oil pressure by about 3 grand. No need to rev it high. Sounds like a thermostat, either stuck open or it's got an aftermarket thermostat that opens at like 73deg. I fitted one of these to mine, and under normal cruising condition's late on a cold night water temps get as low as 65deg and it goes from three bars to two. The cold start has kicked in once. Seeing you live in canberra, there's a good chance that's it. Mine didn't make it to vtec though, it cut out as per normal when it's cold.

Do you have a CAI?

yeah when its on 3 bars, doesn't last too long, (IF) get its to the point where its 3 bars about 2 mins later it drops back down to 2 bars or even 1 lol only drops to 1 on the really really stupid canberra cold nights!

I have a k&n pod as far as im aware..?

i'll check everything you all said tomorrow when it gets abit warmer lol

**eriktufa** · 18-06-2009 09:34 PM

Even at 0 degree the temp gauge SHOULDN'T drop below 3 bars after it warms up.

2 of you have faulty thermostat by the look of it. I have aftermarket thermostat and it doesn't do that.

**JAP-S2K** · 18-06-2009 09:43 PM

I was thinking mine could be faulty, however it's only about 2 months old. Mine did take a fair bit of HWY driving but only doing 80 or so, till it fell back to 2 bars. It's a J's Racing item and it hits three bars and just opens. I think at around 68 deg mine gets to three bars.

**aaronng** · 18-06-2009 10:44 PM

Originally Posted by JAP-S2K

I was thinking mine could be faulty, however it's only about 2 months old. Mine did take a fair bit of HWY driving but only doing 80 or so, till it fell back to 2 bars. It's a J's Racing item and it hits three bars and just opens. I think at around 68 deg mine gets to three bars.

A J's Racing thermostat opens at lower temperatures, so the temperature will be lower. It will take some driving before it comes down. A failed thermostat will have the temperature drop after just a little bit of driving. The OEM thermostat should open at about 90 ºC.

**JasonGilholme** · 18-06-2009 11:09 PM

for street driving you want a descent coolant temperature. it does have an affect on fuel economy.

If you're not racing, don't use a racing cooling system. its not designed for street use.