95 cougar 4.6 bogs down

[greta1]

I have a 1995 Cougar 4.6 that is difficult to start and bogs down when the accelerator is pushed past 1/4 throttle. The motor will rev if the pedal is moved very slowly, but bogs if pushed normally. There were three codes:
1) Cyl 6 misfire, 2) bank 2 lean and 3) egr temp low. Pulled the #6 plug and it looked ok. The plugs are less than a year old and are bosch platinums. The car is stock and has 70,000. Any ideas?

Anyone know how to test the TPS sensor, etc. I have a Haynes manual, but it doesn't cover these areas well enough.

We had a similar problem a while back with cyl 5 misfire, and traced it to a bad plug wire, but that plug looked terrible. The #6 wire tested ok this time.

The cars owners (parents) tell me that the #5 fix kept the engine light off, but the car suffered from poor acceleration pretty much since then. (They hardly drive anywhere, so didn't tell me this)

[Camden32288]

You probably should check your O2 sensors. That happened to me for a long time, my acceleration was terrouble and it bogged down when i tried to accelerate. It later became a hugh problem because your car starts using more gas then it needs because the sensor is telling it to produce more gas. I just had mine fixed runs so much better actually has good acceleration and pretty good gas milage now.

[businessjeff]

Yah thats a performance issue with the intake system.
Work with the cheapest first.
Do like the $200 tune up, plugs, wires, cap, rotor, o2 sensors, pcv valve, air-filter. See if that helps it out a bit. Youd be supprised to find out how junky the bosch plugs can be. Sometimes more expensive doesnt mean better.

[PJRichardson]

Check the plugs and wires. bosch plugs suck.