Got my FD with this problem and just cant seem to get it solved. If I press the throttle past a certain point (about 40%, the engine bogs/hesitates and if I hold it there it dies. This happens weather the car is at standstill and revved, or being driven. It starts easily, and idles fine. If I bearly press the pedal it will rev out just fine, but the moment I press past a certain point, it hesitate and revs fall. The plugs are fine and I changed the fuel and air filters, but no difference.



Pleas give your suggestions.

 

List all your mods. Do you have a boost gauge? Are you on the stock ECU?

 

are you on stock pre and main cats..

 

Sorry I forgot to mention the car is a bone stock JDM.

 

I think what amp was getting to is that if it's bone stock, then you may have a serious exhaust issue causing your car to bog. The pre-cats were famous for collapsing and your main cat may now be plugged up with it's debris. Remove the pre-cat ASAP and install a downpipe. You can then check your main cat, but if the pre-cat's toast, the main probably needs changing out too.

IMO, consider an aftermarket Hi-flow cat like Bonez. Just be aware that not all catalytic converters are appropriate for the higher exhaust temps of the rotary.

 

Oh, and if it's a LHD model, you'll need something like an HKS or Trust downpipe that will fit around the steering column.

 

I dont think its the cat.....reson being it will happen right off Idle if i press the pedal too far.... even before there is any significant exhaust flow. Also if I bearley press the pedal it will rev to redline.

 

Then you may be in limp mode....no timing advance or fuel if the manifold is not under vacuum. I'm not familiar with JDM models, but in North American versions there would be a CEL. This is how you can check for codes on LHD versions. You can search around and find out if/how it's different on yours.

http://www.fd3s.net/engine_codes.html

 

Is the check light located on the gauge closter like the hondas? Which one is it?

Should it come on for moment when the IG is turned on?

 

Don't know. Your on your own with all that JDM goodness.

And I was mistaken earlier in the thread. If it's RHD you don't have a pre-cat. Forgot.