No but the moisture seems to bring it out… like steam off the engine getting in somewhere or screwing with a connection.. iv made sure to my plugs are sealed and di-electric grease filled to ensure they have good connections ( a heavy equipment solution for dust and moisture)) use nothing but heat shrink couplers when I don’t replace entire wire… no cracks in any housings or sensors visible that can cause that result or isn’t possible to have one … there are two exact ones to it that are Daily driven and owned by same gm mechanic and there’s no part he hasn’t changed on them… it’s like condensation gets into tps or maf or something like spark is retarded as if limp mode but isn’t, that so it just bogs , pops , occasionally stalls at a idle … but a couple slams of gas or clutch it to 2-3 and it’s fine again … iv bypassed ones I can and no change or replace them with ones from working car and still does … wiring has been swapped or replaced aswell in hope but no avail … iv traced every wire down even made sure correct voltage and ohms at right pins … i have no intake leaks and have great fuel pressure… spark adv is about perfect for the setup around 7* … i ensured to route harnesses in way they avoid heat or possible damage from debris or damage from “ground contact” to be safe … i don’t drive it down gravel unless necessary and then I barely do 70 kmh usually as it’s a lt but has the ss package like body, rims , exhaust but isn’t one …I can clearly tell some replaced body parts (hood , bumper from a lt) but has no history reported and I cannot confirm ownership past previous owner (my father who got it at a auto auction, or so im told) … I even got a parts car to do engine off vins and motors didn’t match so I had order a different one which now has been in sept 2022 and can’t be it… body was 220-230km and motor had 140 only… im at a loss besides going to custom electronics… miss my 96 k/v 1500 at times like this