wont start
 

got the motor all in and the car will not start. there is fuel in the fuel rail and there is spark not sure if injectors are opening, so what else would cause it not to start and im sure there is a bunch of stuff. its a 95 talon tsi fwd plz help.

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what are peoples thoughts that this may be a CAS issue, but it has spark

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Does the car reek of gas? Are you sure the spark timing is on and the cam timing is on?

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twack did all the timing so ask him and the car does not smell like gas at all

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If it doesn't smell like gas after cranking it for a while, it's not getting fuel. Could be your MPI relay.

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where is the cas located and the mpi?

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The CAS is on the corner of the valve cover.

Here's a link of where the CAS is with a pic. The MPI should be in your under the hood fuse box.

http://images.google.com/imgres?imgu...3Doff%26um%3D1

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as far as te timing belt everything is lined up the fuel pump shoots fuel, but the injectors are not opening to deliver the fuel.

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What motor is it? 6 bolt or 7 bolt?

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7 bolt

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This is not correct... On 95-96 cars the CAS is located behind the intake cam gear.

If the CAS was bad the fuel pump would not turn on, let alone injectors wouldnt fire. On 2g's, there is no MPI fuse, there is a relay under the passenger side of the dash behind the kick panel that is along the center console but those rarely ever fail.

Sounds to me like a sensor is unplugged. Are you getting spark? Fuel in the cylinders? Good compression?

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7 bolts dont have a CAS. They got a cam position sensor thats under the timing cover.

If you guys did the timing, the cam position sensor could be to blame. If its the factory one, the wires are almost always toast and just looking at them wrong will make them snap and cause a real headache. Mostly cause you got to the pull the timing belt and maybe a cam gear to get at it. Rent a scanner from the parts store and see if a code pops up.

The wires for the crank sensor are the same way and would probably cause a no start too.

The other fussy bitch is the connector for the transistor pack. Make for sure that its completely plugged in. It actually takes a bit of elbow grease to make sure it clicks. The MAS can be the same way.

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^beat me too it by a second :D

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BTW: CAS is AKA Cam Angle Sensor, so 7 bolts do have a CAS...

The Cam sensor controls the fuel pump and injectors...

The Crank sensor controls spark...

Find out what you're missing and go from there. As long as compression is good.

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I guess everything has a different name to everyone, but thats what mitchell1/alldata called it. I thought since it was detecting the cam gear and not the cam itself, it was a different animal. But who knows, its pretty much the same thing either way since its detecting the position of the cam to help apporpriate timing.

:tequilla2: Maybe I should give up the sauce and I could get with it and figure out what stuff is supposed to be called.

In the end, it will make your car not run so check it out and see if its messed up. If you dont have a extra set of hands to see if your getting spark/fuel there should be a code for either the cam/crank sensors that will pop up on a code reader.

Re: wont start
 

-yup has good compression across the board,
-he says there is spark.
-when you take off the fuel line and turn the key he says fuel sprays out so theres pressure in the rail, or at least it does the initial prime.
-at one point he tried pulling the injectors while still attached to the fuel line and turned it over. they did not spray. but if the pump was pressurizing the rail wouldnt the injectors pop out. so in my mind the fuel rail does the initial prime but then dost keep going. im just guessing.
so it seems like either a problem with the cas being broken or unplugged

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An engine needs 3 things to run: Fuel, spark, and compression. Generally at the opertune moments help. Get a spark plug test or take a plug wire off and place it close to a good ground (not the fuel rail) and watch for spark. Then take a small screw driver or similar and hold it onto the injector, you should feel it pulsing while cranking. Check the CAPs in the ECU, check the power transistor, check the coils, check the coolant temp sensor, make sure the MAS is pluged in, check for thrust bearing wear, could have taken out the crank shaft sensor.

~John

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Are any check engine lights on?

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yes the check engine light is on and i put a brand new cam position sensor in cuz i broke the old one taking it off

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Are you able to look up what code it is? Or maybe find someone who can?

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umm probably just have to rent one and figure out how to do it myself. i have not put the exhaust on so there is no o2 sensors hooked up would that do anything?

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It shouldn't make it not start. It will just run like crap when it does. If your in doubt plug em in and see if it helps.

The code reader is cake. All you gotta do is push a button and it does the rest for you. Thats gonna be your best bet at this point.

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with a nice downpayment autozone might rent theirs

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My o2 sensor is non existant at the moment and my car runs fine. Don't think that would cause a no start.

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ok i didnt think it would really do anything like not make it fire at all

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Check and make sure the ground wire is connected that plugs together by the thermostat housing. It is a single black wire with i think a yellow stripe and it plugs into another single wire of the same. I forgot to do that and it had nothing.

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Hmm... You replaced the cam sensor behind the intake cam? Did you make sure to put the correct cam gear back on after you did this? No reason to take the exhaust cam off but could the intake cam have gotten switched with a different one or even the exhaust cam if both gears were taking off?

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They are in the correct possition I had them marked

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Where is the car located? Did Twack swap the motor or just do the timing?

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Car is by Mankato and be helped bolt it in but me and a friend hooked everything up so honestly I'm sure it's some hooked up wrong or not at all

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ya i came out and put the timing belt on the engine while it was out of the car. I had some extra time so i also got it on the motor mounts. Alliance i know you had a way of towing a couple weeks ago could you tow it to get that code checked?

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this weekend i got a friend that works at advance auto parts he is gonna bring one over and we are gonna check it

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You never answered my question. Did you check to see if that one single black wire was plugged in? If not, that will make it not start.

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That single black wire with yellow stripe should be the starter wire for the ignition. That wire would make it so the car wouldnt even turn over... IIRC

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Well the car turns over so the ground is fine

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ok so i cant figure this crap out so if someone would come help me out that would be awesome im sure we can work something out if anyone has some open time on sunday and would want to come help that would be awesome so let me know

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No this is a different one.

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to help whoever comes out you should get that code read first so they dont drive out there for nothing

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can do ill get that tonight

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Have you ever checked the ECT sensor (Engine Coolant Temp), when they go bad they give a ridiculous temp reading and the ecu doesnt know what to do. Ive had a few of those go bad causing many a headache.