Just like the title says let the car sit for 6 months now it wont fire. All fuses+relays are good, and new plugs. Looked at the fpr while trying to start it and it sits at 0, got out the dmm tested the wires going to the pump... big white/red wire 0volts blue 10-12 volts, other 2 flow some voltage as well.

I cut the big white/red wire hooked it up to the batt, turned the key... still not hearing the pump.

I cleaned the ground on top of the lid and everything.

 

What's the state of the battery?

 

had the battery on the charger all day 12.5Volts

 

Pump is a walbro and its 3 years old tops... guess I gotta pull the assembly and check the connections on the unit that go inside the tank

 

Got the pump working, have fuel pressure now. still won't fire, gotta check the plugs and need a pic of the coils to see if the wires are on right

 

Center coil is the leading, those wires go to the bottom plugs. Top wire goes to rotor 1 (front).

Frontmost coil is for the 1 trailing (top plug, front rotor).

Rearmost coil is for the 2 trailing (top plug, rear rotor).

Like I mentioned on AIM, use your datalogit to make sure you have IDC and RPM when you're cranking.

 

This really has me baffled... Guess I gotta dissemble the uim and check out the wiring, pulled the plugs smelled gas but my lighter wont ignite whatever is on the plug. I put in a bottle of iso heet and tried starter fluid but still no luck.

Plug wires are on correct and they look good...

Rich I dont have a dataloggit either :/

 

hooked up a old plug grounded it to the frame... no spark

wtf would kill my spark, this car only sat for 6 months tops

 

Start checking your ignition wiring. Make sure you didn't get any rodents or anything which may have lunched on your wires.

 

Not that this has anything to do with the issue at hand, but once you get it started and good to go; it might be a good idea to re-wire the fuel pump.

https://www.rx7club.com/showthread.p...el+pump+rewire

 

Afraid to say but I think thats what happened.. there were wood chips on my uim, dunno how they got there...

Guess I might find out after I pull the UIM.

Thank you for the rewire link...

 

Sure was hoping on finding some messed up wiring, but no all the wiring is good and all the wires are correctly on the coils...

 

maybe when storing for long periods, might be good idea to set rodent traps all around the car where it sits? or place sticky mats all underneath the car. or both.

 

are you getting 12v at the coil?

 

Guess tomorrow ill figure out how to check the codes and check them... I don't have any other ideas right now.

 

I dont know which wire to check at the coils.

 

Only one wire per coil will have 12v, just check both. Make sure to turn your key on first.

 

no codes

 

ill do that tomorrow so I guess guess poke each wire thats connected to each coil while the key is on yes?

 

Correct.

 

Pulled each coils plug... checked with my dmm... 0V each of the 3 plugs.

Shined a light on the harness seen some tape pulled off and looks like bite marks in the tape... I know that harness use to be nicely wrapped... Knew it wouldnt go well when I seen those wood chips on my uim.

Guess i'll repair the harness...

 

Checked the harness closely, no damage done... but I did find that the main ground for the electrical harness came off the p/s stub, so maybe thats why my coils werent gettin power. I found a new bolt and bolted it back up to the block. I am hoping that it will start now, I have went over just about everything.

 

That ground will typically stop the car from being able to fire if it's not grounded properly. Hopefully that's the only problem with your car.

 

still no luck... took out the coils and its harness going to try and clean em up as good as I can along with any grounds i see.

Cleaned the plugs as well, gotta wait till my buddy gets here since I let him borrow my dmm. Need it so I can see if these coils are getting power yet... Ill test the plug on the elec harness...

 

Checked the elec harness conn. 12.2V connected and checked the 3 coil plugs 12.2V.

So now my coils are getting power but still wont start...