Bad Missing!?!? :(

[snowmobiler624]

Hey guys so a couple days ago I started getting a miss and its got progressively worse. So I have been doing what I can starting out cheap. So far I've done a full fuel injector cleaner and new spark plugs without any results. This leaves a completely bad fuel injector or a bad coil/ Direct Ignition Cassette right? If I smell the exhaust I can smell the unburnt fuel so I'm thinking its not the injector and that it has to be the coil. Is there any way to just replace 1 coil? I'm a broke high schooler and I'm trying to stay as cheap as possible. So does anyone know where I could get a Direct Ignition Cassette for relatively cheap cause I don't really have $400 to drop on one unless I really have to. So any advice on repairing the one I have or testing or where to one cheap would be VERY much appreciated! Thanks in advance!
-Evan

[Jeff325]

If you have a bad miss at idle or under load it's more than likely your spark plugs and or the DI Cassette.

You need to get the proper BCPR7ES NGK spark plugs the owner's manual calls for and gap them to .9 mm.

You can't repair the individual coils in the DI cassette,

You can find a good used Red DI cassette, instead of buying a brand new one. If you are in the Denver, Colorado area try Mile Hi Saab or East of Sweden to see if they have any used ones. All of the junkyards around here are pretty dry for 9000's and no DI cassettes out there in the 9000's which are there.

[snowmobiler624]

Originally Posted by Jeff325

If you have a bad miss at idle or under load it's more than likely your spark plugs and or the DI Cassette.

You need to get the proper BCPR7ES NGK spark plugs the owner's manual calls for and gap them to .9 mm.

You can't repair the individual coils in the DI cassette,

You can find a good used Red DI cassette, instead of buying a brand new one. If you are in the Denver, Colorado area try Mile Hi Saab or East of Sweden to see if they have any used ones. All of the junkyards around here are pretty dry for 9000's and no DI cassettes out there in the 9000's which are there.

Ok I just got some E3 spark plugs the guy at Checker said they should work good for my car. Is that wrong? and I'll check those places and see if they have some used ones. Thanks and well I'm talking to someone in Colorado do you by chance have T5 Suits and no how to use it?

[Jeff325]

The guy at Checker is wrong and doesn't know about Saab's with the DI cassette! Never use anything but the specified NGK BCPR7ES plugs for the car. You can and will cause early DI death by using the wrong plugs.

Both Mile Hi or East of Sweden should have the correct NGK plugs too.

Nope, don't have the T5 suite here....my ,92 9000 has the DI/LH system. Not running Trionic.

[snowmobiler624]

Originally Posted by Jeff325

The guy at Checker is wrong and doesn't know about Saab's with the DI cassette! Never use anything but the specified NGK BCPR7ES plugs for the car. You can and will cause early DI death by using the wrong plugs.

Both Mile Hi or East of Sweden should have the correct NGK plugs too.

Nope, don't have the T5 suite here....my ,92 9000 has the DI/LH system. Not running Trionic.

Hmm really? even on the E3 website it says they will work for saab 9000? I have to drive the car to school and stuff so I'm going to have to run on these plugs for a couple days... and alright thats fine just curious lol

[justin.graeff]

Always use the NGK. The sites may say you can use different brands, but saabs designed their engines around the NGKs to perform best. Get the plugs the manual states and gap them to .9mm and see how it runs. If you need a DI cassette, I have an extra that I can sell you.

[snowmobiler624]

Originally Posted by justin.graeff

Always use the NGK. The sites may say you can use different brands, but saabs designed their engines around the NGKs to perform best. Get the plugs the manual states and gap them to .9mm and see how it runs. If you need a DI cassette, I have an extra that I can sell you.

Ok I'll pick up some NGK when I can. And how much do you want for it?

[snowmobiler624]

I ran down to East of Sweden today and got a new DI Cassette and four NGK BCPR7ES like u all recommended and the missing is gone and its running like its happy old self now my mom can have her car back lol. So thanks for all the advice guys!