- Joined
- Oct 12, 2016
- Messages
- 18
Hey everyone.
Friend has encountered a very weird problem recently. I will try post as much information as possible and list all steps from A-Z. To begin with the car is a 2014 Mustang GT. The owner, my friend, baught a Paxton 2200 kit, with ID1000's, kooks long tube headers, the air intake upgrade, rxt clutch and BAP all at the same time, and proceeded to install them on a bone stock 2014 GT. After installing the mods, he began the remote tuning session with a tuner that is well trusted by the coyote crowd and that is known to do good work. After completing the remote tuning, all was great. The car made approximately 650whp on pump 93 and no hickup whatsoever.
Now came the fun part, my friend took his car out for a drive. Went WOT in second gear, car pulled hard, and as soon as he shifted into third gear and got back on the throttle the car felt gutless. He quickly pulled out his laptop. Repeated the pull and found the ECU pulling alot of timing as soon as he shifted into the next gear, you will find logs attached to the thread. He repeated the process, this time after shifting into third and as the ECU pulled timing, he would let of the throttle and go WOT again in third, the car would run perfectly again through third gear.
He began inspecting everything he could. Couldn't find the source of what seemed to be fake knock. He returned his car to 100% stock, and on a stock tune, he found the car not adding as much timing as it should. On the stock tune, we expect the knock sensor to read -6 degrees, meaning no knock is detected and the ECU is adding its maximum amount of timing. However this was not the case even with high octane fuel. It would not add more than 3 degrees of timing (so read -3).
At this point we went on to perform a leak down test. All cylinders showed approximately 8% leak, which we believe to be a normal number. Except cylinders 5,6 and 1, which all showed 0% leak, even after cranking the engine a few turns and trying again.
I have attached logs to this thread, and hope a few could chime in with suggestions. The car is tuned on SCT. I appreciate any help with trying to resolve this issue, its been a couple of months with no luck.
Friend has encountered a very weird problem recently. I will try post as much information as possible and list all steps from A-Z. To begin with the car is a 2014 Mustang GT. The owner, my friend, baught a Paxton 2200 kit, with ID1000's, kooks long tube headers, the air intake upgrade, rxt clutch and BAP all at the same time, and proceeded to install them on a bone stock 2014 GT. After installing the mods, he began the remote tuning session with a tuner that is well trusted by the coyote crowd and that is known to do good work. After completing the remote tuning, all was great. The car made approximately 650whp on pump 93 and no hickup whatsoever.
Now came the fun part, my friend took his car out for a drive. Went WOT in second gear, car pulled hard, and as soon as he shifted into third gear and got back on the throttle the car felt gutless. He quickly pulled out his laptop. Repeated the pull and found the ECU pulling alot of timing as soon as he shifted into the next gear, you will find logs attached to the thread. He repeated the process, this time after shifting into third and as the ECU pulled timing, he would let of the throttle and go WOT again in third, the car would run perfectly again through third gear.
He began inspecting everything he could. Couldn't find the source of what seemed to be fake knock. He returned his car to 100% stock, and on a stock tune, he found the car not adding as much timing as it should. On the stock tune, we expect the knock sensor to read -6 degrees, meaning no knock is detected and the ECU is adding its maximum amount of timing. However this was not the case even with high octane fuel. It would not add more than 3 degrees of timing (so read -3).
At this point we went on to perform a leak down test. All cylinders showed approximately 8% leak, which we believe to be a normal number. Except cylinders 5,6 and 1, which all showed 0% leak, even after cranking the engine a few turns and trying again.
I have attached logs to this thread, and hope a few could chime in with suggestions. The car is tuned on SCT. I appreciate any help with trying to resolve this issue, its been a couple of months with no luck.
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