slight sputter/failed emissions

[hamburglar]

Hey guys,
I have a 92 and.....
I moved to Phoenix and I had my radiator blow up on me. It sprayed into the alternator and fried it. I have a CAI and the car stalled from all the steam generated when the radiator blew up. Now after fixing the above problems the car will "sputter" alittle and hesitate under load. I replaced MAF, CTS after I failed emissions for a slightly high hydrocarbon reading (1.07 with a cutoff of 1.0). The emissions guy told me that it should be something electrical (spark plugs, wires, coil, etc.). I replaced the coil and the front bank of spark plugs due to them being close to the radiator. Car still is doing the same exact thing.
He said the sputter is the cause of the fail emissions.....the rest of the readings were super great.
Any ideas?

 

[rubydist]

are you getting any codes?

I would consider replacing wires.

the symptoms you describe are typical of weak spark - either bad coil (already changed but are you sure its good?), bad wires, or bad plugs. since you apparently sprayed hot coolant all over the engine, its certainly possible that the plug wires were damaged.

 

[hamburglar]

Only code is MAF grounded. Cannot remember exact code...157?

 

[hamburglar]

How can I test wires since they are really expensive on these cars

 

[msteiny]

I would clean and reinstall the old MAF. Just to see if your getting the same code. Im just spitballing but that code sounds like its shorted to ground. If that doesnt work look in the manual and see if they have the voltage specs for the MAF sensor and back probe the connector to see if it completing the circuit and sending the computer data within limits. I guess that where I would start. however there are a lot of things that make it fall on its face when driving.

 

[hamburglar]

The old MAF has been cleaned many times to try and fix this....
Maybe a bad wire to the MAF?

 

[sperold]

You can go to the RCM website and you can get wires for around $60.00. Everybody laughs at them, but they are new and they work well. I think the same brand is available at Autozone. May as well take the intake off and change those back plugs too and you will probably find a few issues (like vacuum leaks) while you have the intake off.

 

[lowc]

the maf is probly not your main issue. I would start by changing out the wires like said above you probly cooked them after spraying hot coolant all over them.