what are these and how do you fix them

 

code 32 is the EGR, i think code 33 is the MAF relays.

EGR solenoid may need replacing, sometimes tightening your gascap will fix it. (ECM registers a loss of vacuum)

IF 33 is a relay or MAF sensor code-replace the 2 relays behind your battery.

 

Yep - the infamous code 32....and what a pain to get to the EGR valve for the typical test, where you stick your fingers under the valve and lift up on the diaphram. Can't do that here because the EGR is located under too much hardware.

My '86 wanted me to spend MORE time under the hood, so it threw a 32 at me. I used a Mighty-Vac vacuum pump, connecting it to the rubber hose on the EGR valve and pulled a few inches of vacuum and let it sit for 15 seconds or so to see if the vacuum needle on the pump would drop. Nope it stayed steady. I noticed that the small length of rubber hose at the EGR valve connected to plastic tubing.

I followed the plastic tubing vacuum line to its next connector - up front by the thermostat. I attempted to pull the plastic tubing out of its rubber connector and it broke. I could see that it was already cracked. That's where my vacuum leak was. This plastic tubing becomes fragile after so many years.

Fortunately, I was able to pull the broken end out of the rubber connector, and push the tubing in. All fixed! :yes nod:

Of course, to clear the code from the memory, disconnect the negative cable at the battery for 1 minute - making sure your ignition key is not in the 'on' position (that could blow your ECM). I've heard you can disconnect the little orange wire fromthe battery at its fuse holder to clear codes, too (then you don't lose your radio stations/time), but mine's buried under too many other cables to get to.

Hope this helps...