My new 944 and the reference sensor dillema need some advice from the Porsche guru's - Page 4

h8tr_ · 03-02-2009, 07:54 PM

well no luck yet, the connectors on the car side look good nothing broken on them, i rechecked the bracket and aligned just how it said on clarks garage, now I'm wondering what could have failed that caused the car to stall on me and then get no spark, maybe DME relay??? as of now I'm shooting blind

John_AZ · 03-02-2009, 08:23 PM

On post 59 you said you had tach bounce. DME relay is next. No spark?

Sorry to read about the D & J work situation.

GL
John_AZ

Outback Porsche · 03-03-2009, 02:03 AM

While you were up on top of the engine working, you may have disturbed the connector on the AFM or the cylinder head temp sensor.

h8tr_ · 03-03-2009, 07:40 AM

John_AZ i just noticed now that you point it out that i missed the "no" on post 59 what i meant to say there was that i had no tach bounce.

TSNAPCRACKLEPOP · TSNAPCRACKLEPOP's Garage

after mine wouldn't start, my brother insisted that it must be sensors, thats how I enede up going thru this heXX! I also removed and cleaned the dme computer under the passenger floorboard with electrical contact cleaner, and the contacts, since my battery tray used to leak. There was a little corrosive dust near the drainhole in the computer case, but no huge defects I could see. when I got it all back together, I replaced the cap and rotor, and replaced all the plugs with autolite 65's///////////
runs like a striped ass ape! KISS (keep it simple ,stupid) I had had problems starting this car in the past after rain or thick fogs. Previously, it started by drying out the dme relay. Then, one day, it would not start, just Missed a little and ran poorly, very very poorly. I wash my engine a lot, so I probably got a crack in the dizzy cap, somewhere. I cannot see it. I have looked, but my cap was really shot anyway. be sure you get the cap on straight, mine moves a little when you install it.

TSNAPCRACKLEPOP · TSNAPCRACKLEPOP's Garage

look in the motorcycle mirror.

TSNAPCRACKLEPOP · TSNAPCRACKLEPOP's Garage

oops, this mirror!

John_AZ · 11:17 AM

Quote:

Originally Posted by h8tr_

John_AZ i just noticed now that you point it out that i missed the "no" on post 59 what i meant to say there was that i had no tach bounce.

XXXXXXXXXXXXXXXXXXXXX

EDIT: Oh, now I saw you did an edit

John_AZ

TSNAPCRACKLEPOP · TSNAPCRACKLEPOP's Garage

correct connections on the sensoArs?

h8tr_ · 03-03-2009, 11:14 AM

Quote:

Originally Posted by John_AZ

No, I missed the "no" in no tach bounce...

John_AZ

no you didn't I did, after I saw you post I went back to it and added the "no" so other people reading wouldn't get confused

h8tr_ · 03-03-2009, 11:20 AM

Quote:

Originally Posted by TSNAPCRACKLEPOP

correct connections on the sensoArs?

yea they are connected right , that was the first thing i made sure i marked properly before disconnecting them, I've read a lot how people are having a no start problem and turns out to be they plugged them in incorrectly. I'm gonna try the DME relay jumper trick to see if its my DME relay that has gone bye bye

iamchappy · iamchappy's Garage

Quote:

Originally Posted by John_AZ

Good point by Speedy,
Resetting is found in www.Clarks-Garage.com

I forgot something very IMPORTANT!!!!

COVER the bell housing TIMIMG MARK HOLE
COVER the bell housing TIMING MARK HOLE

Use HD duct tape or stuff a rag in the opening. If you drop anything down, the WHOLE clutch has to come out.

John_AZ

Oh Oh I just dropped the Allen bolt into the TIMING MARK HOLE,,ARGHHHHHHHHHHH.
I was gapping the speed sensor today thinking it may be the cause of the cold start problem, i removed the allen head thinking it would be easier to work with if i replaced it with a bolt instead. I dropped it, and down it went. i will try to fish from the bottom but know what i may be in for as i replaced the starter ring last summer.
I can guarantee the car will sit for a long long time and may even be towed away someday if i cant fish it out of there.......

TSNAPCRACKLEPOP · TSNAPCRACKLEPOP's Garage

i am still missing a 6mm allen, maybe mine got ground up?

iamchappy · iamchappy's Garage

My odds to fish it out may be a bit better seen is an automatic not a clutch. I know whats involved in getting inside of that bellhousing and it's not what i would call fun.

John_AZ · 03-04-2009, 03:44 AM

Quote:

Originally Posted by h8tr_

now here's the bad every time i had started the car in the past it would start right up and idle nicely for a car that had only been started to get the fluids flowing, well i decided to drive the car over to a friends house to get the interior detailed and about 7 miles into the drive i get to a light and as I'm starting off the light the CAR STALLS on me and I'm like of maybe i let the clutch out too soon so i try starting the car and nothing I'm like crap i prob didn't put enough gas in the car so my friend that was driving behind me got some more gas and nothing so we pushed the car to a parking space on the side of the road and i start looking around but it was getting dark so i left the car there, the NEXT MORNING I STARTED THE CAR and it started I'm like yessss but i was driving my other car so i went to take it home and when i go back to drive the 944 with a friend it wouldn't start i checked and i had NOSPARK so i'm like the ignition coil prob went so i talk to the guy that i got the car from and he lent me the ignition coil off the 924 and still no spark so i go to check the sensors speed/ reff and and as i unplugged them from the connector at the top the plastic wire insulator crumpled in my hand and left he wires exposed so i'm guessing the sensors where not so good so again i call the guy up and he lends me the sensors from the 924......

h8tr_

I wanted to back to the beginning...I deleted, added caps and red for emphasis.

Outback Porsche suggested you may have damaged other connectors while removing the sensor bracket. Did you replace the sensor connector at the top rear of the block?

Here is another "no start" link from member many944s:
http://www.benms.com/944nostart.html

www.Clarks-Garage.com has the DME jumper as well:
http://www.clarks-garage.com/shop-manual/fuel-05.htm

Look at the Troubleshooting section as well.

The car started when you got it. Did you use the sensors from the past owner or have you purchased new?

Keep us posted on your findings.

GL
John_AZ

John_AZ · 03-04-2009, 03:58 AM

Quote:

Originally Posted by iamchappy

My odds to fish it out may be a bit better seen is an automatic not a clutch. I know whats involved in getting inside of that bellhousing and it's not what i would call fun.

Hi Chappy,
Good luck on getting the bolt.

You should put the link to the 914 project in your sig line. It is an amazing build.
http://www.914world.com/bbs2/index.php?showtopic=75381&hl=

John_AZ

iamchappy · iamchappy's Garage

Hi back to you John...

I have soom pictures of the 914 posted here and a short video.

http://homepage.mac.com/davidchapman1/PhotoAlbum26.html

John_AZ · 03-04-2009, 05:32 AM

Quote:

Originally Posted by iamchappy

Hi back to you John...

I have soom pictures of the 914 posted here and a short video.

http://homepage.mac.com/davidchapman1/PhotoAlbum26.html

Yeah, I saw that. Darla is a real cutie!

John_AZ

iamchappy · iamchappy's Garage

SUCCESS!!!! I was able to fish out the Allen head bolt with the washer this morning.......

The 8mm copper washer that was glued to the sensor that fell off also is still in there somewhere but
that doesn't really worry me if i cant find it, it can stay in there if i chooses to.....

h8tr_ · 03-04-2009, 11:00 AM

Hello everyone, I have some great news she fired up again turns out the DME relay was at fault, now i think back and maybe i didn't need to replace the sensors just yet but then again in the condition they were in i was gonna have to go through hell so better now then later i suppose, so i went to the hardware store today spent about .80 cents in supplies and made my dme relay jumper and plugged it in just like the instructions said on clarks oh and i also repositioned the sensors very carefully to make sure everything was good down there, after the jumper was in i heard the gas pump start up i said to myself well thats a good sign, then i got in the car closed my eyes took a deep breath and turned the key staring at the tach i saw it bouncing then i heard brrrrooooooommmm, so now my issue is that i need to replace the spark plug wires they are in really bad shape and the last one on the engine is not working as i kinda broke it trying to remove it, it was kinda seized in the hole anyways is there somewhere i can buy these for cheap i was not expecting for them to be so expensive but then again that should be expected on this car