Coil On Crap

[MyBeatGSX]

Is anyone else running the Buscher coil-on-plug? I bought it to replace some very old stock coils and hopefully fix my idle misfire. I installed it last night... Very very disappointed. Fitment is horrendous, and instead of using clip on typical spark plug connectors, there's just springs that push down on top of the spark plugs. Which I'm sure makes AMAZINGLY good electrical contact. The engine misfires at idle just like before, but worse, its now noticably rough running and significantly down on power at any speed (I almost stalled backing out of the garage). Throttle response is horrible, boost is rough and power dies quickly. It feels like it did before I put the Evo III and tubular O2 on.

Yes its all wired and installed correctly, yes the plugs are brand new, and yes they're gapped correctly.

 

[dave99gst]

The stock coil is more then enough -
Ive heard COP setups tend to miss.
Im thinking your miss problem is somthing else ?

 

[TRBOBLU]

You have another issue other than the COP. I istalled a Switzer unit which is the same as Buschur's I believe and my car ran better. To make install easier try putting some electronics grease on the inside of the boots so they slide on better. I still admit install was a little rough but check other parts of your car before bashing the product. I have a few friends with them and we have nothing but good things to say. If everything else on your car checks out, maybe one of your coils is bad?

 

[dsm023]

When I first got my set up from them the wires in the plastic clip was set up for a 1g and NO instructions!!! It took some playing around, but now the system works great. Also how far down did you cut the boots that fit over the spark plugs?

 

[eclipsh]

Do you have a logger hooked up? It sounds like you could be sucking unregistered air or have a bad sensor somewhere. Any CEL's being thrown?

 

[MyBeatGSX]

I realize my car has other issues, but that wasn't the point. It ran WORSE after installing it.

But with that said, the issue with the COP turned out to be bad grounding. I ran an 8g audio wire from the battery directly to the plate the coils bolt to. No more problems, but the car doesn't run any better than before. This grounding issue needs to be included in the instructions (valve covers aren't normally well grounded), as does the fact that the boots need to be cut to fit.

So it looks good, but for the money, I probably would have been better off struggling to replace the stockers for $150 less.

 

[boostedinaz]

I realize my car has other issues, but that wasn't the point. It ran WORSE after installing it.

But with that said, the issue with the COP turned out to be bad grounding. I ran an 8g audio wire from the battery directly to the plate the coils bolt to. No more problems, but the car doesn't run any better than before. This grounding issue needs to be included in the instructions (valve covers aren't normally well grounded), as does the fact that the boots need to be cut to fit.

So it looks good, but for the money, I probably would have been better off struggling to replace the stockers for $150 less.

This post kinda makes me mad.

So you know you have other problems with the car and decided to just throw parts at it. When they didn't fix it you come to the conclusion that the part sucks. No ####ing way. Perhaps you should have addressed all the issues to see what exactly is wrong. Start eliminating one problem then moving to the next. Not all parts will make a car run better just by installing them. Some even make it worse by brining up other problems.

As far as instructions so what if it didn't come with them. If you don't understand the systems then perhaps you shouldn't be messing with them. My FMIC didn't come with instructions nor did my 20G do they suck as well? Sometime you have to take a task on by yourself with your own knowledge and make it work. This isn't a set of Lego's or a TV stand, these are aftermarket car parts made by small companies they might not always be perfect.

So before you say that COP sucks and doesn't work fix all your other problems and I bet it will work quite well.

 

[mavisky]

At 266whp, you are in no way needing a COP setup and I would highly doubt you could expect to see any gains from it.

It's like buying a huge aeromotive fuel pump and then running a 14b. You aren't overrunning the parts your replacing so you're not going to notice any difference in performance. COP can be a big help when you're at the 600hp level and the stock coils just aren't making a big enough spark, but at your power level you aren't going to see any gains at all.

 

[MyBeatGSX]

You all completely missed the point.

My stock coils came with the '90 engine. They're 16 years old and have well over 150k on them. They were SHOT.

Simply replacing them should have made a huge difference. Instead I opted to get the COP. Simply bolting it on should have at least returned it to stock condition. What it actually did was make it run significantly worse than it did with nearly antique stock coils. Yes my car has issues... with an idle misfire. Not with hesitation, bogging, light throttle misfires, etc. That was all added to my idle misfire after I put the COP in.

The fact that it requires a ground strap to run correctly NEEDS to be stated in the instructions. That's not just a common sence thing. In fact that its that big of a deal means they should include it. Let's be serious, its cost $300, the least they can do is cut the boots to fit correctly and include a ground strap.

 

[TRBOBLU]

Hmmmm.. I have no ground strap for mine to work. There is something else wrong or you might have got a bad coil.

 

[eclipsh]

Or you're just plain wrong about what the problem is. Did you test the old coils and wires? Have you run any tests on the new coils?

Just because you're pissed off your car isn't running doesn't mean you should start acting like a fool. Take your time and search for the problem. It may have never been the coils. Replacing a working part will never fix the broken ones

 

[MyBeatGSX]

There is no problem anymore. The ground strap fixed it, the problem occured before it was installed. In fact it made some clean dyno runs today with a .030 plug gap.

But why does no one else need a ground strap?

AND WHY AREN'T THE BOOTS CUT TO FIT!?WTF

 

[GSTeclipse]

There is no problem anymore. The ground strap fixed it, the problem occured before it was installed. In fact it made some clean dyno runs today with a .030 plug gap.

But why does no one else need a ground strap?

AND WHY AREN'T THE BOOTS CUT TO FIT!?WTF

1 of my friends has Buschurs Coil on Plug set up on his Evo and has not had 1 problem out of it and he has dynoed 630AWHP on a mustang dyno and pushing 40+ PSI your problem is else where not with the Coil on Plug set up you should have thrown your money towards finding out what the problem was 1st becuase there seem's to have been a misfire and there still is after spend all that $$ so don't blame Buschur BLAME YOUR SELF

 

[dsm023]

My stock coils came with the '90 engine. They're 16 years old and have well over 150k on them. They were SHOT.

Just curious are you still running the tranistor from that '90 engine? Also I didn't need a ground to run the COP on my...

 

[boostedinaz]

But why does no one else need a ground strap?

You most likely have an other electrical problem, grounding, that was affecting the old coil setup as well as this new one. The extra power probably made the problem worse by puting more stress on the bad ground.

AND WHY AREN'T THE BOOTS CUT TO FIT!?WTF

Again, why did I have to cut the bumper and core support to fit my FMIC? Why did I have to slightly dent my water pipe to fit my 20G? This parts were not original and some may have to be made to fit by the installer. It also makes no difference the price of the object.

You can not for see all possiblities or problems.

Just curious are you still running the tranistor from that '90 engine? Also I didn't need a ground to run the COP on my...

I have heard that on a 90 you have to connect it differently that on a 91-99. Is this true?