Bad Behavior - Fuel Issue
#1
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A couple of weeks ago I started having some issues at high boost pressures under load (3rd gear accel). Felt like the ECU was pulling timing or boost. Felt really bad. After a couple more test runs the boost was capped at about .5 bar.
I was concerned.
Then I recalled I had bought fuel at a gas station I don't normally use because I was in an area where there was nothing else. One of those "off brands".
Well, I finally got a chance to finish (gently) running most of the fuel out of the tank today and then filled up at a normal name brand station, Chevron.
I drove around a bit to be sure the previous gas was out of the system and then started some testing. After a half dozen 3rd gear tests, boost returned to the normal behavior pattern. I sure am glad the ECU has a built in safety net.
I would guess that the less than reputable station sold me a lower octane fuel at the premium price. Nice.![banghead](https://rennlist.com/forums/graemlins/banghead.gif)
I read some threads here that discussed these symptoms but didn't see conclusive evidence that pointed to fuel in the end. I am fairly certain that was my issue though I'd rather not test again to be positive![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
Just thought I'd post this for posterity in case someone else has the same problem down thee road.
I was concerned.
Then I recalled I had bought fuel at a gas station I don't normally use because I was in an area where there was nothing else. One of those "off brands".
Well, I finally got a chance to finish (gently) running most of the fuel out of the tank today and then filled up at a normal name brand station, Chevron.
I drove around a bit to be sure the previous gas was out of the system and then started some testing. After a half dozen 3rd gear tests, boost returned to the normal behavior pattern. I sure am glad the ECU has a built in safety net.
I would guess that the less than reputable station sold me a lower octane fuel at the premium price. Nice.
![banghead](https://rennlist.com/forums/graemlins/banghead.gif)
I read some threads here that discussed these symptoms but didn't see conclusive evidence that pointed to fuel in the end. I am fairly certain that was my issue though I'd rather not test again to be positive
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
Just thought I'd post this for posterity in case someone else has the same problem down thee road.
#5
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Thread Starter