MR2 Roadster Owners Club

The Workshop => Maintenance, Problems & Troubleshooting => Topic started by: Chris Yeomans on April 24, 2024, 03:22

Title: Hot restart
Post by: Chris Yeomans on April 24, 2024, 03:22
Hi all, my 2001 MR2 struggles to restart when upto temperature.
It is fine if you immediately start it or leave it for 20 mins or so, it seems like its not getting fuel through, any ideas?
Title: Re: Hot restart
Post by: Carolyn on April 24, 2024, 06:52
Have you tried giving it a basic tune up?  Air filter and spark plug?

Perhaps it's best to invest in TorquePro and an OBD dongle and see what's going on with the fuel mix, throttle position, coolant temperature etc... 

You could have weak fuel pump but that's quite unusual.
Title: Re: Hot restart
Post by: Ardent on April 24, 2024, 18:09
@Chris Yeomans

This has been mentioned before, but a long time ago so no idea of the outcome or thread name. Some creative use of the search facility perhaps.

As C said above.

Had similar in a clio. Ok whilst cold and in closed loop. Once open and taking in sensor data. Awful.
That turned out to be an Engine coolant sensor. Not what feed the temp gauge but the ecu. It was being told it was minus 40 and over fueing.