shhaker

ok so the other day im starting out from a stoplight. first gear and the car just dies. turns over but does not even try to start. after investigation i found the ecm fuse was blown. replaced fuse starts right up. its done it several times since then. first gear under acceleration. stock ecm. ive done a grounding kit on it and that looks fine. i hate to start throwing parts at it. i have a feeling its a bad ecm, but m not totally convinced yet. is their anything i can check on that? i pulled the codes and it came up clean. thanks in advance!!

shhaker

143 views and not one idea eh?

KingBaby

iTrader: (3)

Well I'm having the same issue with my dome light fuse. I ran everything myself so I'm sure I fcuked something up. I believe something is incorrectly grounded. Best bet is to remove everything, and start over.

Hope that helps...

Neimad

Under hard accel something in the ECM circuit gets a short and pulls enough amps to fry the fuse, double check the grounding kit first. Or just take it off as they are useless.

shhaker

ya i built the grounding kit myself....it was cheap. i didnt really notice a difference, if i just disconnect from the neg on the battery will that work just for troubleshooting purposes or do i need to remove the whole thing? its been on there a few yrs and this is the first issue ive had. i also dissconected my amp but no luck i guess besides that i could try my stereo...thanks

shhaker

my car is a 04 track had it since it was new. my passenger side dome light has never worked.

Neimad

With engine idling wiggle the ground points and the rest of the harness to see if you can replicate the problem.

The ground for that fuse looks to be the one near the airbox, check there first.

shhaker

copy, so its near the driver side front. i wiggled the wire hareness around didnt really do anything.

do you think it could be a bad ecm? or just a ground problem?

thanks

Neimad

Bad ECMs are rare, and there will usually be a ton of codes that don't make sense. I just assumed, but do you have any codes stored?

Let's do this right,
Year-2004
Make-350Z
Model/Trim-Track
Trans
Mods-Grounding Kit
Mileage
ALL recent work done
Main Complaint- Blows ECM Fuse under 1st gear acceleration (?% Throttle, actual speed?)
Any other issues, things that don't work?-Passenger Dome Light Non-Op
Codes (present or pending)

shhaker

no before i found the blown fuse it wouldnt talk to the ecm. then when i replaced the fuse it didnt pull any codes.

shhaker

ok i removed the ground kit. wiggled all the wires..no luck. i checked the ground for the ecm looks good. still popping. now what?

Neimad

You need the wiring diagram, make an account at autozone.com and see if they have it in their repair files. Otherwise I'll post it tomorrow when I'm at work. Go read the electrical diagnostic basics here:
http://www.autoshop101.com/

shhaker

well after being hella frustrated i figured i would jack the car up to see what was ratting in my exhaust. come to find out it was my 02 sensor, loose on drivers side, i have test pipes installed.....go figure...tightened up the sensor and no more fuse blowing....thanks for everybody's help!!