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Cobra Forums
The Terminator
Engine/Tuning
Can old gas cause detonation or pinging?
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<blockquote data-quote="04silversnake" data-source="post: 2080819" data-attributes="member: 18092"><p>Hello all, I just intalled the tune I received from James today to go with my 2.93" BF. First let me say I had the car sitting in the garage for two weeks with 1/4 of gas of tank. When I took it for a test, I noticed it was pinging between 1500 to 2500 rpm. This happened on a little boost, 5-8 lbs. I was not flooring the car. When I drove it hard, and shifted at higher RPM, I did not hear any pinging. I then, inmediatly fill up fresh 93 mobil. I drove the car a few miles to waste the old gas from the line. Then i attempted to duplicate the same pinging, noticed it almost was gone, but you could hear very little pinging. Taking it to the dyno this week. Any sugestion? I will also speak to James for any suggestion he may recomend. Do you thing the gas sitting in the tank for 2 weeks could have caused this?</p></blockquote><p></p>
[QUOTE="04silversnake, post: 2080819, member: 18092"] Hello all, I just intalled the tune I received from James today to go with my 2.93" BF. First let me say I had the car sitting in the garage for two weeks with 1/4 of gas of tank. When I took it for a test, I noticed it was pinging between 1500 to 2500 rpm. This happened on a little boost, 5-8 lbs. I was not flooring the car. When I drove it hard, and shifted at higher RPM, I did not hear any pinging. I then, inmediatly fill up fresh 93 mobil. I drove the car a few miles to waste the old gas from the line. Then i attempted to duplicate the same pinging, noticed it almost was gone, but you could hear very little pinging. Taking it to the dyno this week. Any sugestion? I will also speak to James for any suggestion he may recomend. Do you thing the gas sitting in the tank for 2 weeks could have caused this? [/QUOTE]
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Can old gas cause detonation or pinging?
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