1994 Navajo Check engine light

[chunter]

I have a 1994 Mazda Navajo, the check engine light comes on and stays on. I have had the fuel injectors replaced, oxygen sensor, DPFE Sensors, and a plethora of other things replaced.
I cannot find a mechanic who can accurately troubleshoot the problem, any thoughts would be appreciated.

 

[mdrut]

welcome..we need to know the syptoms if there are any..poor mileage, loss of power, black smoke when under hard acceleration, black soot in tailpipe...help us help you...

 

[ntrpriz]

Run to walmart and get a scanner (~25 bucks) and diagnose it yourself. Cheaper and better than a mechanic!

 

[tdavis]

I can't remember if 94's are OBD I or OBD II..

if it's OBD I, all you need is a paper clip to read the codes. Try here:

http://www.therangerstation.com/OBD_I.html

for informaton on how to diagnose it.

 

[ntrpriz]

94 was the last year for the obd I. A paper clip will work, just tell us the codes you get and Ill look them up for ya!

The kit that I mentioned that is available at Wal Mart also will run other test and read the ABS computer codes.

If you are on a tight budget, use the ol paper clip and well be glad to help if we can.

Maybe I should post the codes on my web site?

HMM.

SeeYA

 

[chunter]

There is definitely loss of power when accelerating.
Lately when I punch the gas pedal, there is no affect at all.
The primary code that pops up is 186.
Over the last week when I turn it off, and go to turn it back on it won't start.
If I wait for 30 minutes it starts right back up.

 

[ntrpriz]

Code 186 - Fault in injector circuit or mass air flow circuit.

I would try cleaning the Mass air flow sensor. Instructions for that are on this site.


If that does not work, then you have something wrong with the fuel injectors, and That is not my specialty. Maybe someone else can help a bit on this one.