1989 Ford Probe 1989 Ford Probe: Drop in acceleration and g

1989 FORD PROBE
236,000 MILES • 4 CYL • 2WD • MANUAL
Avatar
VOLSG8RH8R
  • MEMBER
  • 2 POSTS
I have neglected this issue long enough. I have 1989 Ford Probe GL with a 5 spd.
For the past 6 months my car has lost approximately 10 mpg (now gets 25 mpg when it got 35 previously). It almost feels like it is missing but and when it first started happening the RPM would move around. Now the RPMs are fine but it is doesn't accelerate well and the exhaust sounds like it's sputtering.
My two guesses for what is wrong with it is:
-Catalytic Converter
-Mass Air Flow Sensor

Any guidance would be greatly appreciated.

Thank You!
Jul 8, 2009 at 6:55 AM
Advertisement
Avatar
BUDDYCRAIGG
  • ✓Experienced Mechanic
  • 2,262 POSTS
with 230,xxx miles. how long has it been since you had a tune up?
Jul 8, 2009 at 7:13 AM
Avatar
VOLSG8RH8R
  • MEMBER
  • 2 POSTS
The car had a tune up less than 5,000 miles prior. It had the timing belt replaced, water pump, spark plugs, spark plug wires.

E3 Spark Plugs.. I want to say the old plugs had a lot of white ash color look to them.
Jul 8, 2009 at 7:23 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.