engine swap help

[Tattoocurtis]

well i just swapped my 1999 1.8t audi aeb motor and trans i have everything back together mechanically and wiring wise and when i turn the keys it wont crank any ideas? is there any security that would stop it from letting the motor turn over. the starter dosent hum or click ive hit it a few times and still nothing. the motor i swapped with was out of a passat but i used all my sensors off the old motor.

[Mad Cow]

You screwed up something with the starter circuit. It's the simplest circuit in the whole car and relies on nothing but the ignition switch. Did you connect the engine block ground by the passenger side motor mount? Are you 100% sure that you have the starter connected correctly?

[Tattoocurtis]

it is hooked up but im not sure if i have it hooked to the block in the right spo,t this is the only place that made sence to me

and yes the starter is wired correctly no ground 2 wires on the top post and the other 1 pin from the alternator

[Mad Cow]

The ground should be bolted to the engine-side motor mount bracket on one end and the frame rail on the other. Test for continuity between the engine and battery negative, and the starter 12v lug and battery positive.

[Tattoocurtis]

where on the frame rail exactically?

[Mad Cow]

There's a stud under the frame rail facing towards the front of the car, it's behind the AC accumulator/SAI pump area. It's to the left (facing the car) of the motor mount bracket.

[Tattoocurtis]

i went out and found that and tried it still nothing connections are all good near the battery and on the starter could it be the starters just bad?

[qo0v]

did you try hitting the starter with a hammer while having someone turn the key?

[Tattoocurtis]

not while trying to crank it ill try the before i pull the starter sunday and put the one from the original motor on it i know the wiring is right finally so its the only thing i can think to try

[Mad Cow]

Did you confirm 12v and gnd at the starter? The starter trigger wire goes through the engine harness, did you plug that in? It's a 1-wire connection near the back of the motor.

[Tattoocurtis]

ok well i swapped the starter, double checked all the wires and the one at the harness, all the grounds are solid and there is spark at the starter and still nothing seriously so sick of this thing ive been carless for 2 weeks cause this stupid thing

[Tattoocurtis]

well i finally got it cranking ended up crossing the #13 relay