I bought my '93 Probe SE from a family member in 2012, and it ran fantastic (scaled dog fantastic)... only 123K on the clock, well maintained, and a tiny bit of hail/fender damage... long story short, I let a friend of a friend fix the hail damage and dented fender, and a year later she was nearly 300 miles away in the next state, and in worse condition (body/interior) than when she left my hands! Honestly, I've seen better looking junk-yard finds!
On the drive home, she ran decent (but not like I know she should) for the first 250 miles, stopped to top off the tank, another 20 miles... no issues... THEN a complete lack of power, unable to go above 1500 RPMS without the car bucking and bogging. Any additional throttle given... only made her resist further. At one point in time, I was idling in 5th gear just to keep momentum on level ground... in the hills of eastern KY... level ground is few and far between :D
I managed to limp her home the last 30 miles, and have done the following (with no improvements):
- Changed the sparkplugs (old ones looked good)
- Changed the oil and filter (last oil change was 1-yr ago and <1K ago)
- New PCV valve
- New fuel filter
- New air filter
- Sprayed 1/2 a can of Throttle Body Cleaner into the intake which is/was quite carboned-up
She starts and idles fine from a cold start, and will rev 3K+ easily (no hesitation, no noise, no cough, no sputter).
I can drive her just fine at any RPM/speed for about 3-5 miles before the issue of bogging starts.
Once the engine warms up, she is difficult to start without giving her gas immediately, but will idle 500-700 RPMS.
Engine does not over-heat, even throughout the bogging fits.
Oil-pressure is good and steady.
Once she starts bogging down, foot to the floor will not push RPMs above 2K (less under load).
I pulled the hose off the top of the old fuel filter and engaged the pump, fuel flows 5" high and stream is steady. After installing new filter, fuel will flow 6" high and seems stronger.
Exhaust is clean and clear, no smoke, and appears to have good flow.
Timing is dead-on.
ZERO idiot lights on the dash!
I can handle all the wrench turning, but at the moment I'm at a loss on where to go next... and I surely don't want to start tossing parts at it!
Any help and direction you guys can give will help me out greatly! I really need to get this car back on the road, and soon... so I can focus on the interior and get her into some fresh paint.