ChevyChad

iTrader: (50)

If it is not failed, you may need to do a crank relearn on the computer.

SOM 02

iTrader: (10)

this is my car and im geting frustrated with it. i think its just gonna end up getting towed to the shop. we have tried pretty much everything everyone has said and its not working. i guess im just gonna end up having to pay someone

BayAreaSS

iTrader: (10)

Just take a break from it for a while and then go back at it. Dont take it to a shop yet, im sure between the both of you it will get figured out

SOM 02

iTrader: (10)

my car hasnt work in around 13 months im tired of walking away for a little bit. robert said he is gonna try to make it out to the house and check it out friday if he can. if not i will probably work on it this weekend and if we dont get it, its going to the shop

BayAreaSS

iTrader: (10)

I know its been down a long time. Thats cool that robert will come to the house. I'm sure you guys will get it working

ChevyChad

iTrader: (50)

Good luck man. You've come so close, don't give up now! If you take it to a shop, you will be paying them to test out the same things you have already tested anyways! Hang in there buddy.

hirdlej

iTrader: (31)

Your cam is a tooth off, it just doesn't sound right when it's cranking over. Like it's not building enough compression. Did you put the cam in and timing chain set on or someone else?

santiago

iTrader: (28)

the engine builder did both of our motors came with the cam and timing chain installed. the problem is we are not getting spark.

the plugs all look new when we pulled em

ChevyChad

iTrader: (50)

Are you getting fuel? Do the plugs smell like gas? If you were getting fuel, the plugs would be fowled and not look like new. If you are not getting fuel or spark, I'm 99% sure its the crank position sensor...

DVS99TRANS

iTrader: (7)

Does it has the right crank sensor (24x or 56x<i think that's right)???. That is a wierd problem though. I would be atleast calling the builders and getting all specs of the build and what is "exactly" in there. I wish I had my diagrams with me right now. I do this stuff at work and love troubleshooting I'm a dork, sorry...

quick346

iTrader: (4)

You can def hear a intake valve or 2 is hanging open.

you can also hear the uneven cyl pressuer by how it cranks fast then slower when it gets to the seald up cylender's

still should fire or have spark. I would double check all sensers cam,cranck ect

good luck

santiago

iTrader: (28)

we checked for fuel pressure at the schrader and there was fuel there. the plugs have not seen the least bit of spark????we havent checked injectors though...he bought em used.

8a8mfh

iTrader: (3)

Thats what makes forums so worthless when trying to diagnose a problem like this.
Same builder built you guys the same engine, same guy programmed both=great.
He threw a few used parts in his build up and it won't start.
What else is used?

noah89

$10 throws in a new ignition relay. I had no spark intermittently. Little part went in and problem went away. It's been a month and I'm still fine. I start the car on Saturday mornings as the insurance is suspended for the winter. But, the goofey $10 part is worth the effort. I'm probably wrong, but $10 is no biggie and it eliminates an area of concern. Good luck and keep the thread alive with your results.

santiago

iTrader: (28)

whats your point almost everything ive bought for my car is used my car started fine
http://videos.streetfire.net/video/4...f70150a97a.htm

we swapped out the ignition relay with a fan relay and still nothing.

noah89

Flame suit on. Go to the dealer. They've got a zillion sensors that can point you in the right direction instantly. You can then fix it yourself. It's worth getting past the frustration. It really is, I know. I was ready to drop the car on a dealer and be done with it. NNNNNNNOOOOOOOOOOOTTTTTTTTTTT any more. Good luck.

jed.only

iTrader: (9)

going out on a limb here, but is the crank reluctor the same as the motor that was pulled out? i know there are 24x on early LS2s and 58X on laters. all LS1s need the black sensor and a 24s wheel, IIRC. it may be as simple as a PCM edit or swap.

ChevyChad

iTrader: (50)

Just because you have fuel pressure in the rails does not mean that you are getting fuel into the cylinders. If your crank position sensor is not working then the computer won't send any spark to the plugs or signal to the injectors. Sounds like you have both those symptoms...

8a8mfh

iTrader: (3)

Thats what I'm thinking too. Whoever came over and programmed it needs to try a program with the different reluctor.

8a8mfh

iTrader: (3)

Point is--used parts don't always work, even if they were pulled off in working condition. So you can't always say Because no used part is exactly the same as another used part.