21jtb12
Newbie
HELP!!! I have replaced my dizzy and timing seems a little off. It will idle ok but kinda harder to start then before. I put a whole new dizzy in, other things have replaced are:
1)rebuilt throttle body
2)fuel injectors
3)iac
4)tps
5) coolant temp sensor
6)map sensor
7) fule filter
8)wires,plugs
The list goes on and on honestly. Any way what I'm wondering is when I test my new TPS sensor with the key OFF, im getting 1.50-1.60 v at my signal wire(middle blue wire) and when blip throttle it goes up to about 5v or so and back down. But when I turn key on it goes OL and doesn't show any v at all. Turn key off and walla kinda works. Truck runs but has no power and boggs down like crazy with any bit of throttle. Pulling my trailer and mower I probably would have been better pulling my truck with the mower.lol. idk what else to do. Oh let me mention also that iv had the truck for about a year now and the odometer has never worked and idk how long it was not working before I got the truck. But odometer stopped at 191,694.9 miles. The truck is a 88 gmc c1500 2wd auto transmission. 5.7 sbc 350 Tbi. Oh and when driving exaust kinda sounds like it hollow or something or maybe like a eco. But if try to give it any kinda hard throttle it'll pop and almost die. Please any help would be greatly appreciated. I am self taught diyer with a little sense. And wanting to learn more. Thanks in advance for any help
1)rebuilt throttle body
2)fuel injectors
3)iac
4)tps
5) coolant temp sensor
6)map sensor
7) fule filter
8)wires,plugs
The list goes on and on honestly. Any way what I'm wondering is when I test my new TPS sensor with the key OFF, im getting 1.50-1.60 v at my signal wire(middle blue wire) and when blip throttle it goes up to about 5v or so and back down. But when I turn key on it goes OL and doesn't show any v at all. Turn key off and walla kinda works. Truck runs but has no power and boggs down like crazy with any bit of throttle. Pulling my trailer and mower I probably would have been better pulling my truck with the mower.lol. idk what else to do. Oh let me mention also that iv had the truck for about a year now and the odometer has never worked and idk how long it was not working before I got the truck. But odometer stopped at 191,694.9 miles. The truck is a 88 gmc c1500 2wd auto transmission. 5.7 sbc 350 Tbi. Oh and when driving exaust kinda sounds like it hollow or something or maybe like a eco. But if try to give it any kinda hard throttle it'll pop and almost die. Please any help would be greatly appreciated. I am self taught diyer with a little sense. And wanting to learn more. Thanks in advance for any help