well guys this is what i got, i have a miss that i cant find. i have changes the opti again, coil, plug wires, plugs. cked the o2's with my scanner and the rt bank is jumping around from 100-900 mv, the lft bank moves between 800-900mv. i swaped the o2's around and it didnt swap sides. so i know that there is an issue some were can anyone give me any advice? would the iac valve cause this? thats is the only sensor that hasnt been changes through out the swap. and i cked all the plugs and they are all the same. any idea's

 

ttt

 

well i think i fixed it

 

What was it? Sometimes I feel like I have 1 cylinder missfiring when I am sitting at a stoplight. It only does it in gear. It is idling at 550 when it does it. It has new plugs, wires, wire protectors, and it isn't throwing a code for the miss.

 

have you ever had it tuned? it may be "loading up" and getting split BLM's a idle, makes one bank run very rich while the other runs very lean, acts like a miss.

 

I haven't had it tuned yet but it is running rich because of the headers. It needs to be leaned out a little bit but Im waiting for the guy to finish setting my rearend up so I can swap it and then tune it.

 

i think it ended up being the fuel pressure. i had it at 50 and droped it to 44 and it seemed to fixed it.

 

well the fuel pump seems to be the issue. what would cause the fuse to get so hot that is melts the fuse, dont blow it melts it. i changed the relay and still, could it be the pump?????? or is there anything else that would cause that, and also the tranny took a crap again so its out to get relooked at by my tranny guy

 

ttt

 

If the fuse got that hot I would suspect a bad fuse. Put in a new fuse and see what the new one does. The heat is current through the fuse.

 

that is after 6 of them, samething