|
|
|
|
| Author |
|
|
Registered
Join Date: Oct 2008
Location: Eastern Shore, MD
Posts: 327
|
964 fuel pump issue?
Over the past year or so i've had some inconsistent idle issue's. At times the car would start then die or search really hard for idle speed. I removed and cleaned the ACV(think that's right) per pelican instructions a 8 months ago. Doesn't seem to happen much anymore, but occasionally it does.
I just had the kill switch wired into my car and my mechanic(very good friend and long-time p-car guy), after getting everything done started the car and pulled the cord to check the kill switch. Worked perfect. Reset the switch and it started. He wired it to the DME. I haven't seen the car, only talked to him over the phone for a few min. Put everything back in place and tried it one more time. It started then died, started, pulled the kill switch and it died. Reset the kill switch and it started, died and won't start any longer? He said it appears the fuel pump is bad and that possibly killing the power to it while it was running a few times pushed it over the edge. Unfortunately, he's heading to Atlanta and won't be back until Sunday. When he gets back he's going to check to see if it's gone bad. Positive is, it's in his garage when it happened, not me on at a track event 200 miles away. Just curious if there are some tests I can do over the weekend on it to see if it's functioning properly or not. I'm trying to learn how to diagnose problems, but no idea what to do/where to test/how to test it? Thanks for your time and help! Lastly, if it needs replacing what kind of cost/labor is involved.
__________________
PCA National Instructor 93 RS America (some things done to it....)(gone) 85 Carrera (gone) 06 BMW M5 (gone) "If you ain't first, your last" |
||
04-27-2011, 01:05 PM
|
|
|
Registered
|
After having similar problems but not from installing kill switch, it appears the forums and diy will tell you to:
1. check dme / fuel relay 2. dme as our car's age usually has cold solders 3. any one single wire within the entire car can cause this intermittent crap out 4. replace coils (I did all wires, plugs, distrib caps, rotors etc) 5. check that fuel pump is getting power? I'm guessing here I am still having minor stalls (that could be catastrophic if done at the right/wrong time and place) New relay coming, dme coming out and possibly new fuel pump going to be on order I saw the fuel pump for $300 bucks and a few hours labor.... try the cheaper stuff first |
||
|
04-27-2011, 03:12 PM
|
|
|
Registered
Join Date: Oct 2008
Location: Eastern Shore, MD
Posts: 327
|
Makes me think something in the fuse box is lose, bad ground or something. That was the only thing that was messed with to do the install. I'm thinking the fuel pump power/relay might be the issue, but I don't know how to check them?
__________________
PCA National Instructor 93 RS America (some things done to it....)(gone) 85 Carrera (gone) 06 BMW M5 (gone) "If you ain't first, your last" |
||
|
04-27-2011, 03:59 PM
|
|
|
Registered
Join Date: Oct 2008
Location: Eastern Shore, MD
Posts: 327
|
Checked the DME/Fuel relay.......works fine
Jumped the fuel relay but no luck, put the DME/fuel relay back in, started! Tried to restart a few min later.........no start, it tried but acted like it's out of fuel I'm guessing the pump is shot, all things are pointing that way. I did have a few non-starts and dying over the past year, but it always ended up starting and running fine. Maybe the hiccups its had were the early stages of it going?
__________________
PCA National Instructor 93 RS America (some things done to it....)(gone) 85 Carrera (gone) 06 BMW M5 (gone) "If you ain't first, your last" |
||
|
04-28-2011, 12:39 PM
|
|
