nuts4porsche

i have a 80 US model 928,auto 93k,not starting but everything works inside and out but no spark! i can jump the coil from battery and she fires right up,with gas poured in the intake,runs great! no smoke or noises or leaks. anyone have a thought? its getting frustrating! all grounds have been cleaned,installed all new fuses,and a few relays,new fuel pump will be del. on thursday. car is driving me nuts,wife wants me to sell,but i want it. any help? thanks

SeanR

Welcome to Rennlist.

Just to clarify, you pour gas in to the intake and jump the coil with battery power and it runs?

nuts4porsche

yes! starts right up! no issues,but if i dont do that nothing happens, but everything else works-lights,windows,radio,heat ect.

brutus

You bought it like this ? How long since it was a running driving car ?

nuts4porsche

yes,the last time it had tags on her was 99' but the guy said he had it out after that. not sure how honest he was? it is a complete car,only missing rear pass. floor mat

GuardsRedHammerhead

Hey, if the wife wins this one, let me know. I will swing down to C-Bus and buy it, for the right price.

nuts4porsche

you may have to do that...lol she hates it! it has the "s" options with 17 inch chrome "S" wheels with new tread,but the og cookiecutters on now,and all spoilers and trim are off and resprayed. the 17's are a seperate sale,just got those! could let her go to good home if $ is right.

ALKada

Have you checked to see if the fuel pump is pumping fuel??

nuts4porsche

fuel is going to it,but not out,have one on order,will be here thursday.

danglerb

Maybe an old alarm system?

Listen for the fuel pump running when cranking the car.
Check the ballast resistors and voltage at the coil.
Listen to the injectors while cranking for clicks, test voltage with a noid light.

Have somebody that knows a 928 well look it over.

nuts4porsche

would like to get her running from key start,if anyone has feed back let me know what you think

Lizard928

Replace the fuel injection relay with factory part.
As well as install a new green wire.

nuts4porsche

thanks,looking into it now!

heinrich

chrome S4 wheels are 16". Maybe you have chromed 17's on there but 17 was never an option./

4drgl

Is the signal wire from the ecm.... It's usually not green (bc of age, corrosion, and grease), it leads from the bottom of the distributor to a 2 prong plug somewhere on the passenger side timing cover... don't tug on it either, you will break it... very brittle.