HELP. trouble starting 72 1.7L |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
HELP. trouble starting 72 1.7L |
forzamotorsport9 |
Nov 17 2009, 10:30 PM
Post
#1
|
Newbie Group: Members Posts: 44 Joined: 2-November 09 From: Bettendorf Iowa Member No.: 11,001 Region Association: Upper MidWest |
ok so i installed my tangerine racing tunnel and engine compartment lines no problem there, installed a 34R Optima Red-Top, a little big but oh well, went to turn it over, wouldnt turn over. i looked and coming off of the coil is a green wire attached to nothing, i think its a ground. where does this thing go.
any ideas on getting it started and where that ground needs to go. i would figure the engine case but i tried holding it there and pulled out a spark plug and hooked back to the wire to see if it would start and got nothing, i then grounded it to a bolt connecting the tin cover (i think?) to the head and the continuity tester said the circuit was ok so im guessing something has to be wrong with the ignition system, either the coil or distributor, which i THINK is newer and uses the magnetic thing to adjust dwell, which i loosly understand the concept of. also, could it just be the spark plug? it didnt look fouled or anything but i couldnt see a visable spark when having someone try to start the car and it wouldnt gap to the engine case either, so idk whats up im only 18 and a senior in high school so a lot of this is new to me, ive read about it in magazines but never this deep, nor got my hands dirty (i have now! (IMG:style_emoticons/default/beerchug.gif) ) i just wanna see the damn thing run, for only having 47,259 miles on the clock it shouldnt be too big of a deal to fix. i included a picture of what it looked like with just a basic clean too, no detailing or anything, not bad for being 38 (i think?) years old!) i trust the ppl on this site too, so if anybody want my phone number just shoot me a pm and id be more than happy to discuss it on the phone. THANKS IN ADVANCE. note: the green wire in the one pic is the one i grounded. it was just sticking up like in the picture before i grounded it |
r_towle |
Dec 7 2009, 10:31 PM
Post
#2
|
Custom Member Group: Members Posts: 24,624 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
have you replaced the fuel pump relay with a known good relay?
if so, do you have power on the red/black wire from the relay to the fuel pump? We are down to three things. wiring from relay board to pump is broken inside the harness relay board is broken ecu is broken. So, if you have power at pin 13 with the key on, then we can assume the relay board is working and the relay works. Next. Ohm meter from pin 13 on the wiring harness to the other end of the wire to check if its broken. If those two test clear those issues, it may be the ECU. RIch |
Lo-Fi Version | Time is now: 27th September 2024 - 11:55 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |