Hello, I am experiencing a strange problem on my WRX 01. The vehicle has been de-catted (except d/p) and has had a Tek3. The throttle has started to feel really heavy and unresponsive. I use the term 'heavy' as thats how it physically feels, subsequently the car does not respond/accelerate as it should do. The problem is not linked to the throttle or cable being sticky in any way more so with the engine seemingly holding back or being restrained. (similar to when you drove it from cold and try and put your foot down).

When the car runs correctly the throttle feels slack/loose and the car responds with usually shove in your back acceleration.

Cleaning boost solenioid/maf and switching to hi/low boost mode has not fixed it. It has happened once previously and a switch from hi to low has fixed it (not sure why). Not on this occasion though.

Can anyone advise or suggest what could be causing the problem? The vehicle is boosting at the correct levels


Thanks
Jay

 

Maybe an awful lot of issues or sensors to play with like, MAF, Lamda, or sparkplugs/coil packs breaking down. Take it in & get it checked out

 

I havent has any CEL's but I have noticed that the hotter the engine gets , I mean really hot the problem is less apparent - sparkplugs/coils maybe??