p0452 code came up yesterday, again last night, today, and again tonight after being cleared multiple times. Happens along with MAP/Baro sensor code, but i figure I just have to throw in a new sensor for that. What should I check for the evap code?
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P0452 What To Check First?
Started by TyConn, Jan 16 2012 01:27 AM
5 replies to this topic
#1
TyConn
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Posted 16 January 2012 - 01:27 AM
1998 V70 T5 M
1994 854M Silver on Black
1998 Black on Black S70T5
1995 855 N/A @174K: Lightning strike, running on 4 cylinders, mixing fluids, holes in the gas tank, 3 different rims, exhaust leak. DD UNTIL 200K.... Killed By Faulty
1998 S70 GLT...RIP at 320K
1990 245 DL M47
#2
phunktified
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Posted 16 January 2012 - 01:44 AM
Causes
Possible causes of OBD code P0452
- The EVAP control system pressure sensor circuit is open or shorted - EVAP control system pressure sensor may be faulty The Error code is generally activated on detection of the following conditions: An excessively low voltage from the sensor is sent to ECM.
Possible Solutions
- Retighten gas cap - Replace EVAP Control System Pressure Sensor
Former: 89 744 GLE 16V, 90 745 GLE 16V, 95 964, 94 854 Turbo, 01 S40 1.9T, 99 C70 HPT, 01 S60 T5, 07 VW GTI
Current: 98 V70 GLT, 97 854 GLT
Current: 98 V70 GLT, 97 854 GLT
#3
smokin' T5M
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Posted 16 January 2012 - 03:25 AM
On a '98 usually the purge valve for the EVAP system is a problem. It's found on the drivers side of the engine cooling fan at the top. A vacuum line comes from the intake and hooks to one side of this black valve, it also has a 2 pole connector. Also check the gas cap seal and make sure its not beginning to crack.
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Lowered IPD front springs & Intrax rear springs w/ Koni yellow adjustables x4,, 18" Motegi Racing wheels, Federal SS595 tires
HKS BOV, Boosted!! R Exhaust manifold, Custom Cat-back Magnaflow exhaust Etc :)
#4
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Posted 17 January 2012 - 07:44 AM
If your 98 has never had an evap overhaul. I'd check all rubber hoses, gaskets and Check Valves. (The purge valve is thought to be problematic but I didn't have a problem with mine)
Check my post as it has much information for the 98.
http://volvospeed.co...1
Check my post as it has much information for the 98.
http://volvospeed.co...1
98' S70GLT 228K miles ... still on original Turbo
#5
TyConn
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Posted 17 January 2012 - 03:24 PM
where would I locate the purge valve (pics?) the pics of the valve in that thread seem to have been deleted?
1998 V70 T5 M
1994 854M Silver on Black
1998 Black on Black S70T5
1995 855 N/A @174K: Lightning strike, running on 4 cylinders, mixing fluids, holes in the gas tank, 3 different rims, exhaust leak. DD UNTIL 200K.... Killed By Faulty
1998 S70 GLT...RIP at 320K
1990 245 DL M47
#6
phunktified
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Posted 17 January 2012 - 06:19 PM
looks alot like a tcv, its mounted in the front of the bay next to the rad fan and air intake hose ...
some 98's may have a round one though I think .. I have a spare if u want to try that .. unfortunately replacing that and my gascap didnt get rid of my p0455 ..
some 98's may have a round one though I think .. I have a spare if u want to try that .. unfortunately replacing that and my gascap didnt get rid of my p0455 ..
Former: 89 744 GLE 16V, 90 745 GLE 16V, 95 964, 94 854 Turbo, 01 S40 1.9T, 99 C70 HPT, 01 S60 T5, 07 VW GTI
Current: 98 V70 GLT, 97 854 GLT
Current: 98 V70 GLT, 97 854 GLT
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