P1357 and bad ecu?

jasone414 · Jun 21, 2016

I was in desperate need of a car so I picked up a 2000 Accord LX with a F23A1 and manual trans. It has a DTC code of P1457 (EVAP Emission Control System Leak Detected-Control Canister System) the temperature and gas gauges do not work and I think that the speedometer and tachometer are not reading out correctly. If the EVAP vent-shut valve shorted out and fried the ECU, could that cause all these problems? I need to get this car fixed so I can get it on the road ASAP, so any help would be greatly appreciated.

james'99 · Jun 21, 2016

What is wrong with the tach and speedo? The best place to start would be to first replace that solenoid. And then check the speedo and tach against an OBD2 reader.

http://www.ultra-gauge.com/ultragauge/

Could just be something up with your cluster

jasone414 · Jun 28, 2016

I finally got a chance to check the speedo and tach against an OBD2 reader, and what I found was: The speedo reads 40mph when I am actually only going 35mph and the tach reads 1000rpm when the actual engine speed is 1500rpm. I'm just disconnecting the evap solenoid for now until I get a replacement, but I don't like driving it without a working temperature gauge. How can i figure out what the problem with my gauges is?

P1357 and bad ecu?

jasone414

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james'99

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