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Why won't it start!?!?! I've been at it all day.


Mauisnow13

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So today I replaced the alternator on my 240z's L26. I also replaced the fuel filter and spark plugs. They were very black. Still though, it is not wanting to start. I have checked to make sure it is getting fuel and all, and everything seems to be ok.

 

Keep in mind my wiring is shot so I have to start the engine with a screwdriver. The ignition doesn't work.

 

The engine will crank, but it does not fire at all. It doesn't even begin to get compression. A couple days ago it was starting, but not staying on. I found out the key was off. duh. I turned it on and tried again. Nothing. I finally gave up. It was starting fine almost everytime I jumped it and now it wasn't firing at all. Ever since then it hasn't tried to turn over. Just cranks.

 

Any ideas? My dad and I are completely stumped and naturally I'm starting to get a bit frustrated.

 

Thanks,

Amren

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Guest 280ZForce

it's because you took the front bumper off, the polarity of it acted like a grounding system, simply install the bumper back on and viola.

 

 

 

 

 

 

 

 

haha jk,just messing with you... but maybe when the old alternator gave up the ghost it blew a fuse or shorted out some wiring? maybe it died because of an existing electrical issue that finally surfaced?

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Do you know how many wiring issues I have? hahahaha. My ignition doesn't work at all. The only way to get the car to crank is to cross the bolts on the starter and solenoid with a screwdriver.

 

The engine cranks, just doesn't fire. Could this really be because of an electrical issue?

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Although this may not solve your current problem, I have to ask myself why you are trying to start a car with such electrical issues. You should really be focusing on a plan to fix the electrical issues firrst. I've been there, and I'm currently wearing the t-shirt :)

 

Get a plan. I was very confused by the masses of relays and little black boxes all over the place but wanted to master everything. So I decided to rip out all the wiring and install a custom wiring loom. This approach meant I knew every wire in the car and I also managed to reduce weight by abouy 15 lbs. It's not as scary as you think. I've done this three times now on different cars using a different supplier of the loom each time. My current car is wired as a race car and has no ignition key, just a bank of switches for everything and a starter button. The alternator is a Chevy 1-wire unit so there is no voltage regulator or other such junk.

 

Really, don't try to fix one problem when there are several more that lie before it.

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I am planning on doing an L28et swap, but I'm still working on the body. Once the body is done, I'll replace the engine, tranny, and wiring. I don't want to spend too much getting this running.

 

I would like it to run so it is easier to move to where I need it. I ran fine before, but stopped. Oh well, I guess it's time to push it places.

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Sounds like you have no power to the coil. Have you verified spark at the coil? (Pull the center wire off the dist. cap, hold it with insulated pliers about 1/4 inch away from a good ground and crank the car over. You should get a big spark from the end of the wire. If not, check to see if you have 12v. at the + side of the coil.

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