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So 3 weeks ago i bought an 89 comanche short bed 5 speed with 91 thousand miles on it clean frame and good body. I paid 1000 doallars at police auction. I finaly got it home changed the oil and filter, drained the fuel and added new tried to start it, i had no spark. So i started to check things out so far i have replaced the CPS, Coil, Cap, Rotor, Wires and ICM was going to change the plugs but after i pulled one and i looked brand new i decided not to, after all that got it to start, but it would stall while driving. I replaced the the TPS and it was good to go or so i thought. It drove fine for three days. my brother had it on friday and said it ran great, actully better then his 90 cherokee when it was renix (we just swapped in everything from a 95 so i have an extra renix engine and majority of sensors) so saturday i go to drive it and it was running like total garbage and got worse till it stalled. now it starts runs so rough that it seems like i have muitple cylinders missing and there is no throttle input. I checked my fuel pressure its at 38 pounds. I'm going to change the spark plugs to see if maybe i fouled one or mutiple out while trying to get it to start and I'm going to change my fuel filter because i wanted to do it any way. So what should i check after i do the plugs and filter. I'm leaning towards something fuel related because it got so low (less then 1/8th) and i don't know the quality of gas that was in there. As far as service records or any history i don't know any. The only tring i know is that it sat for at least two years at the impound.