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1998 Volvo S70 2.4L MIL Lamp on
This Volvo has codes 448 & 442. If I jumper the #1and 3 terminals at the relay the pump runs, and sounds like a vacuum [...] question I have is when is the pump activated. My understanding is it is there to speed up the catalyst warm up time. I believe it runs...
FIX posted 5/5/2002
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Related Documents & Media | VIN | YV1SL5341W |
| Engine | 2.4 L / 5 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| 442 | pair flow fault |
| 448 | PULSED SECONDARY AIR INJECTION SYSTEM PAIR PUMP low flow |
Message Closed
Vehicle Data
1998 Volvo S70
| VIN | YV1SL5341W |
| Engine | 2.4 L / 5 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| 442 | pair flow fault |
| 448 | PULSED SECONDARY AIR INJECTION SYSTEM PAIR PUMP low flow |
Video