420A wont start because of no spark

[eclipseflybyu]

hey im about to quit my car wont start because of no spark i dunno wtf is going on because i cant get any spark it will crank and crank and crank it has compression new gas with octane booster it is getting fuel it has power just no damn spark can some one help ohh and by the way i have brand new msd coil and wires so thats not the problem

 

[ClipseAPG]

Did you check your plugs? Are the wires in right firing order? Coil set up correctly?

 

[eclipseflybyu]

yea bro i did all new

i can literally hold my wires in my hand and have sumone try to start my car and i wont get shocked or anything

 

[J-VilleDivision]

I remember having a similar problem back in the day. but mine was injectors and spark.

It ended up being the CAS. Apparently it has alot to do with the injectors firing and the ignition sparking.

If nothing else put the old coils back on and see what happens????

 

[ClipseAPG]

Check for voltage on your CAS, or a blown fusible link under the hood.

 

[1G-3G Eclipses]

what was the last thing changed before it wouldnt start?

 

[eclipseflybyu]

hmm i did a full motor swap to a new 420a and plugged everything in but my plugs are drenched in fuel when i take em out so obviosly im getting fuel jus no spark i have a walbro 255 pump in i dunno????? maybe it is the cas sensor im just so confused i bought a new cas and a wire adapter they said i had to have from auto zone and the three wires on the adapter r the completly diff colors than on my cas harness peice help............................

 

[mach4g63t]

Pull a plug and check to see if you have spark or not. You can do this several ways. Easiest way would be to disconnect the power to your fuel pump and spin the CAS by hand. If you can't spin it by hand, crank the motor a few times. If you lay the wire with the connected plug down on the valve cover and see spark arching from your plug to your valve cover then you know power isn't an issue. Swap the wires around.

You might think you have them right, but I kicked my car a 100 times over a 4 day period once before realizing I had a different coil pack and my plugs were crossed. Good luck.

 

[98gsxNJ]

It could also be the the MFI relay i know for a fact that if there is no spark to the spark plug wires it could be that. Also if you did a motor swap and you didnt put everything on timing the car will not start. Also you said you have compression do a compression test.

 

[eclipseflybyu]

how do i do a compression test and where is this mfi relay