808Bill

Car won't crank after engine replacement
I have no idea where to start.
All connections are made, batter new and has a full charge.
I know it was running before the previous motor failed...

I do have a Durametric but have never used one. Fault codes- P1120, P1139, P1141
Thanks,
Bill
808 346 7706 (incase you want to call)

Ahsai

Have you checked the fuses C1-C4 and E1? Ground cable connected from the engine to the chassis? Making any noise at all when cranked?

cds72911

The ground cable to the chassis is the one I could see overlooking. Assuming that is present, I'd get out the multimeter and work your way through the system in a methodical way. Break it down into smaller segments and narrow down to the source. Unfortunately, this is a hands on exercise in electrical troubleshooting.

One random shot - is the clutch pushed all the way in?

808Bill

Ground good, I just added fault codes
P1120
P1139
P1141

cds72911

I don't think it would result in a no crank, but there is a simple throttle body calibration you can do. It is a key on, key off, let it sit for 60 seconds, kind of deal. I'm sure it is posted somewhere on here.

Maybe this:
Ignition on for 60 seconds
Ignition off for 5 seconds
Ignition on for 15 seconds
Ignition off and throttle reset complete.

808Bill

Alarm 46,34,60,11,10,33
also says, passenger compartment sensor short circuit to ground

808Bill

Also, my engine lid is off, not sure if that matters?

cds72911

Double check that the harness that goes to the throttle is plugged firmly into the electrical connector in the throttle body? Make sure the two twist lock connectors that connect the body harness and the engine harness are plugged in correctly, fully seated and locked?

TexSquirrel

With ignition key on and car in neutral, can you jumper the starter and make it turn over?
That would at least rule out a completely dead starter.

cds72911

808Bill

P1120 Porsche Fault code 117-Throttle Plate
P1139 " " " 430- Throttle position sensor 1
P1141 " " " 431- Throttle potentiometer

TexSquirrel

Haha, " * If you are trying to steal the 996 run away because somebody is right behind you."

TexSquirrel

Are you using the same TB from the old engine, or the one from new engine?
Maybe swap those.
Also check the connectors to make sure you don't have any bent pins.
I've run into this before while troubleshooting.

NuttyProfessor

That's not good news at all. I've been following your threads on this car and noticed you've put a tremendous amount of blood, sweat, and tears into getting this car operational. Where did the replacement engine come from? private sale or dismantler? Did the company or person give you any sort of DOA and/or warranty of any kind? I'm hoping the engine is fine and that something simple has been overlooked during the install.

808Bill

Time to go to work...
Please keep the ideas coming and note the previous fault code.