LFA Poor Starting and Fuel Consumption

Hi, I have a 2011 Lexus LFA (gasoline engine) with roughly 81708 km. It's been starting poorly lately, and I've noticed higher fuel consumption along with what feels like reduced engine power. The idling is also uneven, and sometimes it even stalls. Could a dirty injection valve cause these symptoms?

4 comment(s)

I also have an LFA. The symptoms you describe sound familiar. Have you checked for any unusual emissions or noticed any changes in engine performance under load?

Emissions seem normal, but the performance definitely dips around 4000 RPM. Could a defective injection nozzle really be the culprit?

A defective nozzle is possible, especially with those symptoms. Given the LFA's performance characteristics, precise fuel delivery is critical. I'd advise a diagnostic check by a qualified workshop to confirm the issue before proceeding, since the repair cost might be pretty high.

Thanks for the insight. Took it to a workshop and it was indeed the injection nozzle. Cost me 515€ to repair, but the car runs like new now.

Join the discussion now: