93 z28 install cam promblem
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93 z28 install cam promblem
my friend installed a cc503 cam in his 93 z28, now it idels fine but when he steps on the gas it just bogs out and sometimes dye. i know you can ran a cc503 on a stock 97 tune but dont know about the 93. the guy he bought the car off didnt have a 02 sensor hooked up too it was broken off i was thinking it was that but he insist that it ran good before what you guys think? , ok last thing he pluged the little hole right underneath the TB where you plug the pvc hose into if thats plug where did he put that hose or should i just unplug it.
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I would really start with the o2 sensors . That is what fine tunes your fuel mixture it cant do that without them hooked up. The car probally ran fine until he screwed the plugs. Which is another thing I would change. A get it tuned just because it will run without a tune doesn't mean you don't need one. People pick good power on bolt-on cars with a good tune.
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Te MAF system copes with mods witho0ut tuning bettrer because it measures airflow. The speed density system does not and is more tune sensitive.
It is also downright stupid to try and cam a car but not want to tune it. Moving it around the driveway or stuff like that is one thing but to think the cam swap is the end of the modification means you need to put down the wrench and back away.
A cam without a tune will gain you probably only about what a tune alone would have gained you but at a much higher price and risk. The tune is just as important as the cam.
It is also downright stupid to try and cam a car but not want to tune it. Moving it around the driveway or stuff like that is one thing but to think the cam swap is the end of the modification means you need to put down the wrench and back away.
A cam without a tune will gain you probably only about what a tune alone would have gained you but at a much higher price and risk. The tune is just as important as the cam.
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To be honest the first place I would start is to make sure the opti is splined in correctly. If it is a splne off it will act like this also. It is is off the other way it will rev pretty fast but ping like a ****.
All the other info here is good also Just pointing out some thing that Is easy to miss and I have seen people miss personaly
All the other info here is good also Just pointing out some thing that Is easy to miss and I have seen people miss personaly
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ok i know it needs a tune but before i have him spend a couple of $100 on a tune i want it to run right. theres no point in tuning a car thats not running right and the 02 wasnt hooked up so i got him to do that first and now it runs at 500 rpm instead of 1000rpm and i had him unplug his pvc so thats right. i dont think it was the opti ive delt with them before and they are a bitch but its on right. thanks for the input