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Ever since I got my cam installed, something is has been wrong, maybe was even wrong before that. The cam is a Comp 206/212.
The best that I can explain it is that at WOT it feels like somebody hits the brakes just before 5,000 rpms and the power just dies. It pulls great right up till then and just lets off. The odd thing is that it’s not always as the same rpms, it’s done it at 4,500 before and on rare occasions, it won’t do it at all. It’s most common that it will run great when the car is very cold, 110* or so on the temp gage. Another symptom is between 2,000 and 2,500 rpms my car can't pull very well. It does fine lower than that and fine higher than that, but usually doesn't like those rpms but again, it’s never consistent.
I first thought that it was running lean on the top end so I got a walbro 255 fuel pump, that was a waste of money. I let Robert at Pro Tech drive my car and he told me that my car was misfiring. He blamed it on the Taylor Spark Plug wires which are made for a 99 and not for my car. That day I put the stock wires back on and now have MSD wires waiting to be cut and put on the car, only problem though, it still does the same thing as it did with the taylors. A few of my terminals on my coils were rusted so I took them in and had those tested for resistance at AutoZone, they all had the correct resistance. Should I pay a shop to test them in the car to make sure this isn’t the problem?
I did Auto tap again with unsure results. Actually the first two runs that I made with it, the car ran perfectly, I was shocked. Then on the 3rd and forth runs it did the same old cutting out thing where it just dies out at 5,000 rpms only to struggle to pull all the way to red line. Here's a zip file with my autotap logs http://www.angelfire.com/poetry/ttop.../ATap_Logs.zip
Here's a Excel file where I compiled what I noticed that changed any http://www.angelfire.com/poetry/ttop340/car/all.xls
(Stupid Angelfire, copy and paste the link and it works.)
If I missed something on Auto Tap that I was suppose to be looking at, please advise and I can record more logs. I noticed a lot of misfires in the misfire history for cylinders 1, 2 and 3. There were a few on 4 and 6 with none on 5. I did have a problem with spark plug wires falling off though for a bit so that could be that.
Could it be just the knock sensor picking up either valve train clatter, exhaust noise or something and thinking its knock? If so, are there desensitized knock sensors out there? Can I desensitize it with a resistor or something?
[ January 17, 2003: Message edited by: Ttop34 ]</p>
The best that I can explain it is that at WOT it feels like somebody hits the brakes just before 5,000 rpms and the power just dies. It pulls great right up till then and just lets off. The odd thing is that it’s not always as the same rpms, it’s done it at 4,500 before and on rare occasions, it won’t do it at all. It’s most common that it will run great when the car is very cold, 110* or so on the temp gage. Another symptom is between 2,000 and 2,500 rpms my car can't pull very well. It does fine lower than that and fine higher than that, but usually doesn't like those rpms but again, it’s never consistent.
I first thought that it was running lean on the top end so I got a walbro 255 fuel pump, that was a waste of money. I let Robert at Pro Tech drive my car and he told me that my car was misfiring. He blamed it on the Taylor Spark Plug wires which are made for a 99 and not for my car. That day I put the stock wires back on and now have MSD wires waiting to be cut and put on the car, only problem though, it still does the same thing as it did with the taylors. A few of my terminals on my coils were rusted so I took them in and had those tested for resistance at AutoZone, they all had the correct resistance. Should I pay a shop to test them in the car to make sure this isn’t the problem?
I did Auto tap again with unsure results. Actually the first two runs that I made with it, the car ran perfectly, I was shocked. Then on the 3rd and forth runs it did the same old cutting out thing where it just dies out at 5,000 rpms only to struggle to pull all the way to red line. Here's a zip file with my autotap logs http://www.angelfire.com/poetry/ttop.../ATap_Logs.zip
Here's a Excel file where I compiled what I noticed that changed any http://www.angelfire.com/poetry/ttop340/car/all.xls
(Stupid Angelfire, copy and paste the link and it works.)
If I missed something on Auto Tap that I was suppose to be looking at, please advise and I can record more logs. I noticed a lot of misfires in the misfire history for cylinders 1, 2 and 3. There were a few on 4 and 6 with none on 5. I did have a problem with spark plug wires falling off though for a bit so that could be that.
Could it be just the knock sensor picking up either valve train clatter, exhaust noise or something and thinking its knock? If so, are there desensitized knock sensors out there? Can I desensitize it with a resistor or something?
[ January 17, 2003: Message edited by: Ttop34 ]</p>
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