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Stumble Fixed ?? 98 Obw 2.5

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98 OBW, fixed my engine stumble issue? It began about a month ago, every now and then while motoring along it would stumble. The only parts on this wagon that was not Subaru OEM were the spark plug wires. So I placed an order with my Subie dealer. In the time it took me to pick up the OEM wires I went ahead and swapped out the following parts I have spares for:

Cam Sensor

Throttle Position Sensor

Fuel Filter (needed replacement anyway)

Ignition Coil

MAF

O2 Sensors (replaced prior to stumble)

Plus a couple more I probably forgot about? But did not fix the stumble.

The old plug wires that were in there since I bought the car in Oct 97, were suppose to be recently installed by the previous owner?

Today I installed the OEM Subaru wires, the quality seems much better :) they even sealed the joints between the wires and connectors.

Took it for a 30 mile drive with NO STUMBLING :banana::banana:

 

The old wires were Belden Premium 7mm SAE Class F-MF.

Yet another post confirming the need to stick w/OEM wires.

 

Why Subes are so picky, I do not know.

 

Congrats on getting it fixed!

Yet another post confirming the need to stick w/OEM wires.

 

Why Subes are so picky, I do not know.

 

Congrats on getting it fixed!

 

They are waste spark and aftermarket doesnt use the purest silicon for thier wires. They use cheaper stuff.

 

nipper

  • Author

Update,

After 3 days and 250 miles, my Subie's stumble issue is gone :grin:

Not only is it gone but it seems to run smoother than it was. Especially during acceleration and shifting.

This is a great message board, a wealth of information. Thanks

 

Also thanks Four-Fleet-Feet for the keyless installation manual, but no luck, it didn't help me with my OBW :banghead: Big thanks for taking the time and postage to try and help me :headbang: :headbang: :headbang:

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