02-08-2019, 02:27 AM
reran compression yesterday, engine cold and engine hot, all 4 cylinders right above 170. put in another set of NGK plugs and timing on the mark other than the fluctuation of a notch or two. fuel pressure is steady 34 running, when i open throttle to WOT fuel pressure goes to 40psi and holds at 40 the whole time bogging. vacuum all in range, gas tank completely emptied and fresh gas put in. have not changed rotor or cap, they look brand new and look like suzuki brand, wires look brand new and look like factory heavy duty brand. I thought maybe cat convertor but figured with O2 sensor out it would alleviate enough back pressure to at least get some improvement but it didnt. new maf and new tps didnt work, unplugging maf lets me rev up. I dont know what to try next other than maybe ECU.