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Message: <blockquote data-quote="ben37" data-source="post: 1467876" data-attributes="member: 24688">@<a href="https://www.sn95forums.com/members/cwgu3.23984/" target="_blank">cwgu3</a> I did not have access to an IR temp gauge, but I did remove the y pipe and checked the cats, the seem to flow fine. I also removed the rear O2 sensors (made a deliberate exhaust leak) to see if the rear cats are clogged, but it changed nothing on engine behavior. So I think I can rule out the cats at this point.@<a href="https://www.sn95forums.com/members/lwarrior1016.20210/" target="_blank">lwarrior1016</a> damn. I have a code P1336. I had it for a while now but it started when I ran another strategy (fbgi0) on the quarterhorse, and decipha from efidynotuning.com said it was a hdr misfire initialization fault because it was configured for the v8 sensors, and also provided me with another bin that didn't show the code (which I stopped using for various other reasons). I haven't heard back from him about what specifically changed between the two bins he gave me, but I couldn't find anything. So there is a possibility it is the camshaft sensor that is acting up. Would certainly explain the irradical ignition behavior and all the other symptoms I am experiencing.@<a href="https://www.sn95forums.com/members/waynenorcross.19551/" target="_blank">waynenorcross</a> I know, but wouldn't I see overheating then? Sensors read fine, and the temp pattern follows the regular behavior of a working thermostat. Also, wouldn't my motor have been seized up by now? I have ran her on the highway WOT for 10-15 minutes with this issue persisting (I know, not smart. But then again, tells me it's not a heat related issue).@<a href="https://www.sn95forums.com/members/mylittlepony.11359/" target="_blank">MyLittlePony</a> I did clean it, yes, but I also have the direct MAF readings available from the quarterhorse. It reads correct for the driving condition and TPS value, comparing it to some logs from months ago, and what I experienced. So I am pretty sure the MAF is fine.I also disconnected it for the heck of it, but the car struggled to idle really bad and I didn't run it for more than 10 seconds.I'm feeling like <a href="https://www.sn95forums.com/members/lwarrior1016.20210/" target="_blank">lwarrior1016</a> might be on to something here. I'll go check out the wiring for that sensor later, maybe that has a nick in it. If not, I'll have to abandon this thread until I come back into the country in a couple months and have more time to throw parts at it/diagnose. I will post back once that happens. Thanks guys for all the help and suggestions so far!</blockquote>