I pulled my codes this moring and found code 33 but don't have my manuals. Can some one please tell me what this code is on an 89 VG?

 

This is in the stickies...

http://pages.cthome.net/bbachinsky/nissan_ecm_codes.htm

 

Thanks I found it after posting.
I just changed my O2 last week could it have gone bad already? I just replaced all of my injectors over the weekend and thought I would have gotten my power back but did not.

 

Well if you read the info it says it is a egr malfunction...Not a oxygen sensor malfunction..

 

I saw that... So does that mean that I need to replace the EGR valve? I can operate the plunger on it but I bet that does not mean that it is good.

 

Ok sorry for posting a usless thread... I will be looking into test the valve and the control switch as well.

Could this be the problem with my lack of power?

 

Is it a smooth lack of power or a vibrating/missing type power loss???

 

Some times it can be both? It feels like a miss some times. I will be driving at about 3000 rpm's and the rpm needle will dip about 500 rpm or so.

 

Sounds like it is temporarly cutting out/dying...Not missing...

 

It is also running very rich.

 

Yes that is what it sounds like. It seams like I just loss all power all together for just a second and then it is back. It also happens more when the car is under load going up a hill or something.

 

Didn't you replace your injectors a few weeks ago??

You may have a pinched o'ring seal on one of your injectors..

 

Yes I replaced the other 5 this past weekend as I had just replaced one that was not ohming out. I pressure tested the system before putting it back together and had no leaks? Is that what you mean?

 

This sounds more like a electrical problem...

Maybe a bad mass air flow sensor/ignition coil....

Have you done a tune up on it lately???

 

Yes, I have replaced the plugs with NKG's, wires, cap, rotor, and I totally cleaned the lower intake and collector using new gaskets. I have build up forming on the cap points? It is white.

 

The white build up is normal after a few thousand miles...


I am still available for a mechanic...

 

Well I would take you up on the offer if I had some idea on what the problem was. My rpms are also still droping when I do anything that puts load on the battery/alt. the rpm's will dip just like when driving.

 

I just got a 94 gxe...Runs great...Maybe we could swap some parts around until we find the problem...

 

You are in Clarksville right?

 

Crossville...About 150 miles..

 

WOW that is far away... I'm working in Smyrna until next Monday that put me a little closer... I found my rpm drop problem, it was the wire that goes into the coil. It had not seated in all of the way and so it was not giving a good spark. I replaced the coil, dist., and power transistor yesterday and it is running better but I still have no power? The egr valve is not working, I can feel it try to raise the plunger but it just goes right back down. Does the egr play into my power loss?

 

When you say feel "it" raise the plunger you mean when you push on the acell pedal right? Did you have someone push on the acell pedal and feel the membrane move up and down on the EGR?

From what you said I would have thought fuel injector as well but you said you tested the ohms and did a pressure test.

If you're getting an EGR code it might be that. Are you sure you reconnected all your wires/hoses right?

 

According to my 1994 FSM code 33 means the following:

Heated oxygen sensor circuit.

Malfunction is detected when:
@The heated oxygen sensor circuit is open or shorted.
(An abnormally high or low output voltage is entered)

Check item(remedy):
@Harness and connector
@Heated oxygen sensor
@fuel pressure
@injectors
@intake air leaks

I looked at the website but if this was my probelm I would personally trust the FSM. Most of what's listed above are what you touched when replacing your injectors.

 

Well when I first got the car one of the first things I did was replace all of my vacume lines. I just replaced all of my injectors as well. I was in the engine compartment and would operate the throttle while my fingures were feeling the plunger on the egr valve. I would feel it pull up for just a second to go right back down.

 

I also have a problem now with white smoke, and very rich smell coming from the exhaust.

 

Posted this on another thread, however, have never pulled the ECM/ECU codes.
How do I do this ? Thanks in advance !!