ok guys so i have been working on trying to get my ls running better for awhile now. i did the wiring for the mpfi on the car myself and the car is using an aftermarket distributor. when i try to start the car its pretty tough to do so, but it will start up eventually. when running it runs like absolute crap, it sounds like its running on 3 cylinders and it wont rev up at all and back fires a little.
now the weird thing is that when i turn the car on the only thing the ecu is doing is blinking once then a pause, blinking once then a pause continously. i have the o2 sensor hooked up so i dont know why it would be throwing the code. ive been trying to switch around the dizzy wiring with no luck, but imma keep trying.
i tried switching the tps wires around and it made it idle and run on all 4 cylinders, but it was revving at like 3.5k rpm. also if i used 16 gauge wiring to do the mpfi is that too big of a wire?
i just need some advice really, thanks

 

Did you make sure you did not switch the TPS plug with the Map sensor plug? The plug the map sensor is plugged into should be Green/White Red/Yel and White.

Alot of people switch this around.

Also did you switch the outside TPS wires? The Green/White and the Yel/White. Wasn't sure if this is what you were referring to when you said you switched them, just making sure.

 

hmmm, ill have to double check that i didnt switch them around. and yeah i tried switching the outside wires around.

 

ok well i didnt switch up the map and tps sensors. does anybody know if i used 16 gauge wiring, if it could mess up the wiring? im just lost on this and the car still runs shitty

 

im pretty sure its the dizzy or dizzy wiring that is making it run shitty. how can i test my dizzy to see if its in working condition?

 

bump because i just went out and change all the wiring to what im pretty sure is right. but now its not starting at all and it threw code 15. but after i reset the ecu its not throwing the code anymore. im confused, wtf is going on?

 

bump, cmon i need help. i dont know which wires from the dizzy match up to which wires from the harness because its an aftermarket dizzy. how could i figure out which wires go together?

 

anyone?

 

bump