sr20det swap not starting?

[ventrex]

so i just swapped my sr20det in i know the engine works it was in my other car a year ago but havent started up since... all the wires are hooked up as well as grounds the ecu is plugged in tight i dont think its getting any spark can anyone help?

[Hijacker]

It's cranking but not turning over?

Make sure you wired the connector beside the battery up properly. The coils get their power through that connector.

[ventrex]

which ones exactly? theres alot of connections by the battery... i have in total 4 unused connectors, one is right near the fuse box near the battery and has two wires yellow/red and yellow/blue. i dont know where it goes. its driving me nuts i really want my car to be done its my daily driver.

[Hijacker]

I'm talking about the two plugs that connect your EFI harness to the chassis. They're beside the battery going to the fender

[ventrex]

yeah those are in... but the connector i mentioned above that is unused... is it suppost to be unused? and im checking all grounds.. but there isnt much of them.. it seems like their all hooked up

[Hijacker]

They may be plugged in, but are the wires pinned correctly so the plugs match?

[ventrex]

do you know how much volts the coilpacks should be getting and how much volts the fuel injectors should be getting??

[Hijacker]

12 and 12

There's no resistors inline on either of those units.

[nzmoman]

VENTREX...

you never answered his question...

what is it doing exactly when you try to start, turning over or not?

have you checked your ignitor chip, and all of your fuses (alt, ign, fuel pump) as well just to cover those bases.

If you are checking your fuel pump signal and coils. Im assuming you have no spark and no fuel. Is your starter turning over? Is the starter being engaged...if not when you turn the key nothing will happen (you may hear the fuel pump) but you will get no response from the motor. Check to see if there is fuel in the line, check both because it is easy to get fuel lines crossed.

Be sure to make a real test for spark and fuel before you mess with wiring.

pull one of the coilpacks with a spark plug in it and lay it on the vavle cover with a bolt next to it. Don't hold it in your hand. and put it on something metal. have someone crank the car and see if it arcs to the bolt. make sure its close enough 2-3 mm, I think you can do this without the bolt as well, but I always use one.

also listen for the fuel pump to prime.

Let us know what is happening on the dash when you try to start the car? are you getting lights, are you hearing the ignition relay click?

The way it works is :

your ignitions gives power to all of the things that start your motor:

first your fuel pump,then your starter, and coils and ignitor chip. After you make sure all the fuses are good, check your system in that order. Ign, fuel, starter, coils and ignitor. start at the beginning of the system and work your way to the end. Troubleshoot each individually.

You said this swap was in a car before so the wiring should not be to big of an issue. What chassis is it in now and what did it come out of? you need to let us know that as well because there can be subtle wiring differences between cars.

[ventrex]

thanks hijacker i did what u said about the two plugs they werent wired correctly so i did that... then it still cranks but doesnt turn over and start... unless i put gas or starter fluid in the throttle.. i put gas in the throttle and it started up rough and it started reving really high by itself to the point where i had to shut the car off... alot of smoke came out of the exhaust and the turbo heat sheild was smoking....? any ideas? im totally clueless... its my first swap.. right now im installing a walbro fuel pump... if that'll help?

[ventrex]

update!!!!

i had the fuel lines wrong, corrected and the car starts up... but its very rough... its running rich... when i start up it jumps to around 5,000rpms and then settles down to around 3,000 rpm and is pretty loud... when i step on the gas pedal it gets a little quiter at around 2200 rpms... alot of smoke is coming from the exhaust and the turbo heat shield is smoking alot. any suggestions?

[ventrex]

nevermind!! i got it figured out so far! thanks everyone for their help!

[nzmoman]

congrats!!!

[ventrex]

thanks, i appricated your help as well!

[ventrex]

by the way, how do i know if i have a blown turbo? and can it be changed in the engine bay or do i have to take the engine out?

[nzmoman]

turbos can be changed with the engine in, its just a pain in the butt...

I have pulled a motor before just to change a bottom mount turbo, just because it is easy if you are running a bare bones setup. you could have it lifted in about an hour or so and be working on the turbo. But that depends on whether or not you have the right tools.

If you have a top mount then you are sitting pretty.

[DRIFTING.com]

nevermind!! i got it figured out so far! thanks everyone for their help!

what was the problem?

with our documented swap it was the cam angle sensor... took some time to trouble shoot

[ventrex]

fuel lines were backwards, and the EFI harness plugs near the battery weren't wired up correctly!