Engine turns over but doesn’t start on a Yaris VVTi - Toyota Yaris Forums

YarisVVTi2002 · 10-17-2017, 07:30 AM

Hi everybody, I'm back! I never got to find the cause of the non-starting problem in my Yaris last year, so I left it over the winter. I changed the VVTi solenoid / actuator in the spring and tried to start it and it worked almost immediately, I tried putting the old one back in (as I couldn't see anything wrong with it) and the car still worked. I've run it intermittently over the summer with the new solenoid in without any problems. I don't think the cause is the solenoid. I didn't use it for while but now that the cold weather has started the Yaris is back to the same problem as before and doesn't start but turns over OK. Nothing was done on it between when it was starting and when it was not.

I put in some cold start spray into the air inlet and it almost started for a second.

I've checked a few obvious things: there is a decent spark on all the plugs, fuel is getting through but the compression is low (5 bar / 75psi) . The battery is fully charged. It's had new plugs, air & oil filter and new oil.

I've plugged in the OBD and no error codes show up.

We never solved the problem last year and the current symptoms are the same. My best guess is something temperature or fuel related.

Any ideas anyone?

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10-17-2017, 07:30 AM	#27
YarisVVTi2002 Drives: Yaris VVTi 2002 Join Date: Oct 2016 Location: UK Posts: 22	Hi everybody, I'm back! I never got to find the cause of the non-starting problem in my Yaris last year, so I left it over the winter. I changed the VVTi solenoid / actuator in the spring and tried to start it and it worked almost immediately, I tried putting the old one back in (as I couldn't see anything wrong with it) and the car still worked. I've run it intermittently over the summer with the new solenoid in without any problems. I don't think the cause is the solenoid. I didn't use it for while but now that the cold weather has started the Yaris is back to the same problem as before and doesn't start but turns over OK. Nothing was done on it between when it was starting and when it was not. I put in some cold start spray into the air inlet and it almost started for a second. I've checked a few obvious things: there is a decent spark on all the plugs, fuel is getting through but the compression is low (5 bar / 75psi) . The battery is fully charged. It's had new plugs, air & oil filter and new oil. I've plugged in the OBD and no error codes show up. We never solved the problem last year and the current symptoms are the same. My best guess is something temperature or fuel related. Any ideas anyone?