So today, having some spare time, I decided to check the codes that occasionally comes on my suburban (check engine), I get the standard "no iginiton signal" which is supposed to be there Then (flash) (flash) (flash) pause (flash) (flash) x3 (flash) (flash) (flash) (flash) pause (flash) (flash) x3 Code 32 and code 42. 32= EGR 42= electronic spark timing I suspected the EGR and coolant temp sensor, but I was mistaken. Any who. I took the cat off, because I haven't actually gotten around to clearing that. Intended on replacing it with a straight 3" pipe to run from the "Y" to the muffler, never got around to it. So I've been Enjoying cruising around town today with no cat, and no muffler. Sounds great. LMAO. Not really. Every Tom, dick and Harry has looks when I gotta accelerate. Truck did indeed perform better, but it still seems like a total turd (and when I say total turd, I mean running like a stock tbi 350, not REALLY a turd) The truck when I first got it running would boil the tires from a stop if I stood on the gas. ANYWAY. The issue is, timing isn't advancing upon acceleration, hence "code 42" It's just going off the base timing, and a little extra the iginiton module gives it to crank the truck, so whatever dad originally set it at when he dropped the crate Motor in, it's running at that, plus a little bump from the module, and maxing out. I have NO REASON to think timing is off, and I will not mess with timing. Goblins didn't get in there and turn the timing down when I was asleep. But...... This code Explains why it feels like someone stole 200 ponies from it. Now from what I've understood, the way the system works is, anything below 4-600 rpms, the ignition module advances the timing (ideally for cranking), after that 4-600 the module goes into bypass mode and the EST (electronic spark timing) controls timing, and advances as necessary when you apply throttle. Not 100% sure how that works yet, maybe off of the MAP sensor? Something. Ironically 3 months ago, I checked codes. And I had a MAP sensor error, now I don't. So the motor as is is running and driving off of its base timing. It's a fucking turd. Has anyone dealt with this code before? Maybe some suggestions where to start? I don't want "well this seems obvious, try this" I'm looking ideally for someone who's dealt with it before and can share an experience with me. While the previous sentence came off really nasty, I don't mean it that way, I just mean im looking for someone else to suggest something else I'm not thinking about Current strategy is to check for a short at the EST (by the way the EST is plugged in), maybe change the map?, that and replace the module, which I'm told is below the dist cap. Anyone else have any suggestions? Thanks guys as always.