Argh!

[bigboy9295]

Hello All,
I posted earlier about the sputtering problem I have on my 1994 Jetta GL. I have replaced the cap, rotor, and plugs. Wires were replaced about 3 months ago, and I don't drive the car that often due to the nice weather and I own a motorcycle. I did the spray bottle test to see and I got no arching from the wires or the ignition coil. I tried retrieving the engine codes by shorting pins 4 and 15 with a jumper wire, but no codes popped up. I shorted them for approximately 3 seconds, and the CEL went off and never flashed codes. Is there a step I'm missing? Any help or suggestions would be greatly appreciated.

[boschmann]

Was the CEL on to suggest there may be codes? Did you have the ignition on before jumpering the wires? When does it sputter, all the time, under load, idling...?

[bigboy9295]

No the CEL was not on. I thought I could retrieve them anyway. I guess I misunderstood. It sputters @ low rpm's. Idle is rough, and acceleration is rough also. Once I get above 2000 rpm's, it smoothes out, unless I mash on the accelerator. Then it bogs down. I have replaced the fuel filter about 6 months ago, so it should be good. I also just cleaned up the MAF sensor, hoping that would help resolve the problem. Any other suggestions? I just replaced the plugs with Bosch Platinums, but I have read on other posts that NGK's are the way to go. Any suggestions?

[boschmann]

Those plugs are fine. Unfortunately I suspect the MAF, but you should let someone with a VAG-COM look at it if you want to be sure.