Quickbird144

Alright guys gonna keep it short and sweet. Just bought the car this past Sunday. So far has ran like a dream except, when it starts to get warm, I feel a huge loss in performance. Like it's almost not there. Sometimes it's a in and out thing. Also the car will "rarely" miss on takeoff. Like every blue moon. Pretty bad for a few seconds then it's gone like it was never there. But my issues are only when the engine is heated up.

That make any sense? Thanks for any pointers or suggestions!

DJ19895.0

Id replace the 02 sensors if u havent in a while. I had some strange issues going on until I replaced mine. When the car is warm is goes into closed loop thus using feedback from them. Couldn't hurt to replace even if it doesnt solve the issue

Quickbird144

I've gotta check to make sure they still have them! Thanks!

Quickbird144

Sensors are still there and hooked up so awesome. Will buy some tomorrow and get them replaced. Any special tool I need to remove them?

Bubba 95SN

Check fuel pressure at idle running down the road. Check for codes(cel not on does not mean there are no codes) Post results. Then will you get a idea of what the problem may be.

Bubba 95SN

Just realized you are the idiot that just switched parts and never tested anything. I'll not respond you are hopeless. Your car is salvage material or take it to a trained mechanic. Bye.

Quickbird144

First of all that was RUDE. And you must have the wrong person. What parts did I switch and never test? I'm very offended.

enix187

don't be offended by bubba, he's not the most sociable person on the forums and likes to argue over the internet. Looking at your previous post I think he's talking about your turn signals when you didn't respond to his advice to check for power at the turnsignal flasher, even though if you said your flashers work so its getting power, its when the relay is powered that would be useful, if the turns work when you use the flashers but not the turn signals that would point more towards your actual turn signal switch being bad.

and you can rent 02 sensor wrenches from orielly's or autozone

dreamer1uk

Ouch......

OP - When the vehicle starts to act up, thats when i would be checking for fuel pressure.

Are you sure its not an ignition issue? A tell tale sign of a failing TFI module is when you have drivability issues when the vehicle is warm. Most good autoparts stores can test those free of charge.

Any signs of over heating?

Do you have the stock Cats. still or after market H/X pipe?

Quickbird144

Thanks for the input guys. I think I got things cleared up with bubba, I mean no negativity to anyone here, just a newbie that obtained a Fox and need assistance with. Anywho.

dreamer, I will get on that fuel pressure gauge and have my TFI checked out right away.
Just for reference, what should I, and should not be seeing when I hook up a gauge?

Car has never overheated. Stays fairly cool actually.

I do have stock cats that run into a H-pipe that go out into flowmasters.