spark issue please please please help!!

[supraluver4life]

sorry bout that. so spent all day getting out the old wiring harness and started on the new one. i soldered all iffy connections and such and taped it all with eletrical tape. i will update you once its in. if it works... yay!!!! if not then back to work

[supraluver4life]

well i just pulled out the old harness and fixed up another one i had, tested it then installed it. i jumped my car went to start it and nothing.... almost. It would crank over and it seemed like it only fired on one or to cylinders. i pulled out all the spark plugs and the #2 cylinder plug was completely soaked in oil. cleaned them all and put them back in. i also tried swaping around the plug wires on the coils and i still couldnt get anything.

one question. the order for which plug wire goes where on the coils is 1-6-3-4-2-5, and when the car was running well, i mean really well, it was set up 6-1-4-3-5-2. is there a reason it was running like that???

and the cylinders are numbered 1-2-3-4-5-6 front front to rear correct??

[Green7mgte]

Originally Posted by supraluver4life

one question. the order for which plug wire goes where on the coils is 1-6-3-4-2-5, and when the car was running well, i mean really well, it was set up 6-1-4-3-5-2. is there a reason it was running like that???
and the cylinders are numbered 1-2-3-4-5-6 front front to rear correct??

Firing order for a 7MGTE Engine is......
1-5-3-6-2-4
Coil Pack firing order is......
1-6-3-4-2-5
First coil on left, Plug # 1 then # 6 Plug wire into
Middle coil plug # 3 then # 4 plug wire
Third coil on right Plug # 2 then # 5 plug wire
Firing order and coil pack order isnt the same....

yes front to rear. 1 nearest rad.. 6 being the last one.

[cre]

Originally Posted by supraluver4life

one question. the order for which plug wire goes where on the coils is 1-6-3-4-2-5, and when the car was running well, i mean really well, it was set up 6-1-4-3-5-2. is there a reason it was running like that???

It's a wasted spark setup.... 1 and 6 BOTH fire at the same time, same for 3 and 4, and the same for 2 and 5.... so, it doesn't matter if 1 or 6 is plugged in to port #1 on the #1 coil pack, just so long as 1 and 6 are the plug wires connected to it. Follow?

[supraluver4life]

yes thank you cre that explains it very well. i assumed that was how it was setup but i wasnt quite sure. now i dont know what to do.

so after screwing with it for another half hour (swapped the coil packs for the bad ones and checked all the connections) i went to turn it over again and it ran for about a second and a half but it didnt seem to fire on all six cylinders. now i dont know where to go with it.

also this may be important or not but there are 3 round green connectors on the harnesses (2 on the driverside and 1 near the thermostat on the passengerside) which are about 3/4 of an inch in diameter and 1 1/2 inches long (approximately). they are bright green and i have no idea where they go. i cant find any connections except when i pulled out the old harness, i found a connection stuck in the connector and it appeared to have broken off a while ago. it lookes like a little round plastic connection that has a bit of metal and a little 2mm long wire sticking out of it. ???

im really confused and as this is my daily driver and i cannot afford a mechanic, i am suffering.

thank you for you help cre and green7mgte

[cre]

Unplugged/broken connectors = significant.

Sounds like the knock sensor wires and one of the coolant temp sensor wires. Can you post pictures or at least post back with the wire colors? If it's the ones I'm thinking of, the car should still run... it'd run like crap, but it would run.

It's not necessarily going to provide anything useful, but check for diagnostic codes.

[supraluver4life]

i dont have access to the car right now and i dont recall the colors. but where is the temp sensor? because i cant find connetor to plug the connection into

thank you again for the help

[supraluver4life]

oh one more question. would the car not start if the o2 sensor was not hooked up?
cuz i heard it would start but run very poorly

[cre]

It would start... shouldn't even run poorly... just real rich.

Post pictures of the connectors or post up how many wires run to each and what the colors are.

[supraluver4life]

so i found the connection for the green connector by the thermostat... it was right in front of my face... im so dumb lol.
the other green connectors that look the same have on wire going to them and the wires are clear.
here are some pictures. but i also found another connection with a big rubber cover around it. it has one wire going to it and its a square connector. the wire is yellow and black.

oh and the green connectors on the driver side run on the harness right nest to the intake manifold. one on either side of the throttle body. and it looks like they should be run down through the intake manifold and plug into something underneath it. but i dont know where