Quote:
Originally Posted by RJasonKlein
@ stlgrym3 I’m not clear on what you suspect may be the problem. I have an ACE 4-2-1 Type-A 350 header with a Delicious Tuning ECU reflash and @ sales@delicioustuning.com definitely knows what he’s doing. It sounds like he saw something he didn’t like, but what exactly was the problem? Is your car pulling timing or do the logs not look strong? What kind of ‘damage’ was done with your old header due to an exhaust leak?
@ cjd makes a great suggestion to make sure all of your exhaust bolts are tightened properly - both he and I had our header bolts loosen on the flange between the header and the secondary collector/overpipe, so you should check yours, too. I can imagine a scenario where loose header bolts could cause erroneous readings by the O2 sensor, which may affect the ECU and and your data logs. |
The exhaust leak was brought up by Zach of DT when we were communicating back and forth on the possible reason why my car is “under performing” (his words). My previous header did have some issue with the gasket bolts that might’ve caused exhaust leak. At first we were suspect maybe a bad tank of gas caused the sub-par logging data, but then again I was on a second tank of 91 (2 different brands) since the header install because they suspected the first tank was bad. We don’t know whether the exhaust leak is the culprit but that’s one possibility. But Zach told me he does see improvements on each revision I’ve done so far, so hopefully we can finish the pump gas portion of tuning soon and move on to the ethanol tuning.
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