Is this a TPS problem?

[WGBT]

My first posts here....looking for advice re Outback MY04 auto. Throttle is totally unresponsive. Idles fine, poor response from throttle, no power under load. Won't go over 80k's uphill in 3rd/4th. Mechanic is at a loss...no error codes from ECU. Slightly weird voltage from TPS. Mechanic recommended a new TPS, but will this fix the problem?

I suspect that the original issue was a bad load of fuel...tank and filter now clear. Could this be the issue and using clean 98 for a period will sort the problem?

I'm at a bit of loss here

WGBT

 

[Kevin]

G'Day & Welcome

I think the TPS would need to be checked, e.g. what throttle position is reported by the ECU when accelerating? I assume vacuum tests etc have all been done?

I'd think a Subie workshop with their Select Monitor could resolve this issue fairly quickly.

 

[WGBT]

Thanks Kevin

Car has been on the dyno and throttle is not opening under load.

I have issues with local dealer...mechanical work is good but customer service has been poor...I'm not going back. I might look at another dealer not far away.