Fuel Pump

No power to fuel pump in start mode. fuse is good . Jumped the relay . not even getting power to fuel pump Pos. coming out of fuse box.
OK, I have power to fuel pump now. I have spark. I sprayed ether and it fires up. seems like no injector fire.

sounds like the LH is shot.

 

I changed the LH and no difference

i was suggesting the LH going bad  because my S4 had the same symptoms and i narrowed it down to the LH, same symptoms, good spark, noid light there, fires and runs for a few seconds on ether, but wouldnt fire with ignition turned on... 

The LH was swapped. still didnt fire up. I then pulled the injectors which were completely clogged, all 8 of them.
I replaced them and now it runs like a champ with a new LH and new injectors. 

Was your car sitting for a long time?

spark means good ezk. how about the LH relay? did you swap that?

Some folks have swapped with LH that were bad. are you sure the LH you swapped is working?

Did you check if youre getting fuel at the rail? either no fuel getting there (clogged filter at the back or clogged fuel rail) or the LH relay is bad. I see you installed new injectors in a previous thread. so that rules out the clogged injectors.

Try swapping the horn relay with the LH relay and see what happens? if that doesnt work, open the fuel rail and see if there is fuel there (dont loose the little ball at the end of the rail when you open it up).

Keep us posted.

Are you located on the east coast?

Sam

I did a complete intake refresh. Injectors, vacuum, gaskets, fuel pump and filter, blew all lines out. When I turn key on it feels like all relays are working. I did swap the relays and no change.I took the intake runners back off again thinking maybe a broke wire. I did find the connector to the speed sensor basically fell apart and crumbled. I did have gas at the injectors and all that was cleaned and blown out.I'm going to order a new speed sensor and try that.Thank you for your reply.

I live in Wisconsin

forgot to mention the crank position sensor CPS. mine was crumbled and i replaced it. it was a B*%tch to pull it out.

does your Tach bounce when you crank?

The CPS sends a signal to the LH after it detects the engine turning, which in turn fires up the injectors.

If your tach doesnt bounce/move as you crank the engone, then thats where your problem is. if the Tach doesnt move, then your CPS sensor is dead, hence no signal to the LH.

Good luck and let us know how it works out.

Sam

Waiting for parts now but I'll let you know. Fingers crossed.

Ok , I'll let you know. I think it is the flywheel sensor because it crumbled in my hand at the plug.

Hello again Rich928. I finally got the flywheel sensor out and yes it was a TOTAL B%&$. When you say check #1 and #16 am i checking voltage? Do I have key on for this?
 I have to put intake runners back on should have done this week. I also have a new temp 2 sensor.

Hello Rich. I finally got the engine all buttoned up. I have tach bounce when turning over, I have fuel, It will run on ether still, All the relays for fuel pump ezk and lh are clicking but still have no injector fire. You said you could check the LH for me. I guess I don't no what to do other than that at this point. I did put chips in it from 928 international years ago and it always ran good. Can you let me know how to get the LH to you. Barry. Thanks Much..