5 codes on '02 V70 2.4T

goldwagon · Post by **goldwagon** » 19 Jan 2013, 13:00

Check engine light on, with following codes showing:

P2090 Exhaust camshaft reset valve; Signal too low or signal missing
P0245 Turbocharger (TC) control valve; Signal too low. Permanent fault
P0445 Evaporative emission system (EVAP) valve; Signal too low. Intermittent fault
P0448 Leak diagnostic unit, valve; Signal too low
P2401 ???

Car runs fine. 200 miles ago, I replaced an ignition coil. In doing so, I removed hose clamp holding turbo air delivery unit at the point where it runs into the radiator...just under the oil dipstick. I'm wondering if I banged something up while moving things around to get at the ignition coil?

Any assistance in tracking this down is greatly appreciated.

Post by **precopster** » 19 Jan 2013, 14:41

It may be a good idea to go over all the areas you may have disturbed when you replaced the coil.

My money is on wiring that has no or little plastic conduit under the valve cover and is sending erratic signals to the car's ECU due to intermittent grounding with the valve cover.

How does the car's wiring look. Is the conduit all torn up or is it complete?

goldwagon · Post by **goldwagon** » 20 Jan 2013, 17:00

I'll take the cover off and check for grounds and/or stripped insulation.

Conduit is in good shape; I'm the original owner and know the car pretty well.

I'll keep all posted. Any other ideas out there?

ICHASESURF · Post by **ICHASESURF** » 24 Feb 2020, 13:56

I have all the exact same codes!!!! I'm going in circles and I just did a rebuild...02 v70 2.4t....did you ever figure it out???

Post by **RickHaleParker** » 24 Feb 2020, 14:20

ICHASESURF wrote: 24 Feb 2020, 13:56 I have all the exact same codes!!!! I'm going in circles and I just did a rebuild...02 v70 2.4t....did you ever figure it out???

On electronically controlled vehicles wiring and connector condition is critical.
One cannot let it go like the old school electrical / mechanical controlled cars.

P2401 = Leak diagnostic unit, pump. Signal too high

ICHASESURF · Post by **ICHASESURF** » 24 Feb 2020, 17:10

So it was the wiring loom insulation?

ICHASESURF · Post by **ICHASESURF** » 25 Feb 2020, 11:52

Any help is greatly appreciated...I'm needing to pass smog in California!

Post by **RickHaleParker** » 25 Feb 2020, 11:57

ICHASESURF wrote: 25 Feb 2020, 11:52 Any help is greatly appreciated...I'm needing to pass smog in California!

Get the car scanned and list the DTCs you have. Autozone will do a scan for free.

ICHASESURF · Post by **ICHASESURF** » 25 Feb 2020, 17:37

Haha...yeah, ready Past that point...it's just odd you had every single code the same as I
......just wanted to know how you cleared all the codes!

ICHASESURF · Post by **ICHASESURF** » 25 Feb 2020, 17:38

It ses odd and didn't know if an isolated issue caused it all??