Where is MAF sensor on 1994 isuzu rodeo Runs rough

Start w ECM scan, address codes, Check for any cam or crank sensors codes. Check fuel PSI, are the injectors firing? Plug sparking? I know there new but are they working? Scan 1st take it from there. Many emissions sensors (MAF etc can have same effect.) start w scanning

rough means misfire.
there are lots of ways to get misfire.
not just spark.
its one of many.
log in to mitchell's and read.
or buy the service manual.
or get car serviced
or do that test to find out what is causing misfire
spark plugs top my list, well if the ISM wiring is ratty, sure.

Hi Carl, What engine is fitted in your vehicle? If its the 4JX1 If your engine is fitted with the common rail fuel injection system, I suggest that you have the engine flushed with the correct engine oil, replace the two oil filters and then try starting the engine. If nothing happens then suspect the ORP Sensor, found inside the tappet cover and mounted on the oil rail. This is the sensor which opens the electronic gate of the injector drive. It is a crystal sensor and is operated by the pressure of oil pumped through the lubrication system of the engine. If the oil is not of the correct viscosity and too thick it will crack the crystal causing failure. Regular servicing with the correct oil is ultra important with those engines. Regards John

you said your not getting spark..... double check that all of your plug wires are firmly attached ... you could possibly have a bad coil pack .

Replace the fuel filter and check for fuel pressure.

run the fault codes
indicates an injector problem
dirty injectors, low fuel pressure , wiring are all possible issues

Hello i can assist you the best way to resolve your vehicle malfunction would be to have a OBD2 scan completed to retrieve the faults and codes and repair.However to try and guess what the fault and malfunctioning parts would be very expensive and costly.Garages usually charge $25.00 up to $100.00 dollars for this type of service it was a pleasure in assisting you.John

go to the rockauto.com site and compare part numbers for each year and see if they are the same.

the rubber gasket is probably in the socket.

This could be a problem with the spark plug wires. If resistance is high or the boots have carbon tracks, they could be causing spark to go places it shouldn't. Distributor cap?
Make sure places like that are clean and dry. Check for grease or dirt inside spark plug boots. If all else fails, open the hood in the dark and look for sparks jumping around the engine when you rev it up. If so, replace the plug wires.