Flashing check engine light and low engine power

Tiny
JENNELL TAYLOR
  • MEMBER
  • 1997 TOYOTA CAMRY
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 209,364 MILES
The check engine light has been on since we've had it, but now sometimes when we try to push the gas too hard it starts flashing. And it has no get-up-and-go at all. Gutters and fakes when we try to hit the gas. We got it tested at AutoZone and it says the evap canister. But we are wondering if it might be something else?
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Tuesday, August 4th, 2020 AT 5:47 PM

4 Replies

Tiny
KASEKENNY
  • EXPERT
A flashing check engine light indicates that the engine is potentially getting damaged or the exhaust. So that means we need to stop driving the vehicle until that is solved.

What was the actual code that they gave you? It is unlikely that the EVAP system would cause a flashing check engine light but clearly we need to address all codes that are there.

Let me know what codes are there and we can go from there. Thanks
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Tuesday, August 4th, 2020 AT 6:09 PM
Tiny
ASEMASTER6371
  • EXPERT
Good evening,

What is the code number that was set?

https://www.2carpros.com/articles/how-emission-control-systems-work

The canister will not cause a flashing check engine light.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

It sounds light you have an engine misfire. that is when the engine is not running smooth.

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Roy
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Tuesday, August 4th, 2020 AT 6:10 PM
Tiny
JENNELL TAYLOR
  • MEMBER
P0446.
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Tuesday, August 4th, 2020 AT 6:23 PM
Tiny
ASEMASTER6371
  • EXPERT
Okay, the 446 is an evap code for the vapor pressure sensor.

https://www.2carpros.com/articles/evap-system-code-repair

Toyota has had this issue for years. The fix I have found is replacing the canister assembly at the back of the car between the 2 rear wheels.

You will need an advanced scan tool to monitor the sensors for the system to test. I attached the wiring diagram and the possible failures but like I said, the most common is the canister.

https://www.2carpros.com/articles/how-to-check-wiring

I attached the part from rock auto for the car as well. It is a plug and play with no programming required.

Roy

CIRCUIT DESCRIPTION
The vapor pressure sensor and VSV for vapor pressure sensor are used to detect abnormalities in the evaporative emission control system.
The ECM decides whether there is an abnormality in the evaporative emission control system based on the vapor pressure sensor signal.
DTC P0441 and P0446 are recorded by the ECM when evaporative emissions leak from the components within the dotted line in fig. 1 below, or when there is a malfunction in either the VSV for EVAP, the VSV for vapor pressure sensor, or in the vapor pressure sensor itself.
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Wednesday, August 5th, 2020 AT 5:01 AM

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