No fuel, no spark
#1
No fuel, no spark
I trying to diagnose whats going on with my car. Engine cranks fine but I dont hear the fuel pump turn on and I dont have spark when I try to ground out a plug on the valve cover. Where do I start? how do I test to make sure the ECM is turning on? Only thing I have found is that #29 fuse was blown. Dont know what it does.
#3
thanks man, Thats what I saw too. So I replaced it with a 15 amp fuse and didnt help the problem. Still cranks with no spark and I dont hear the fuel pump turn on. So far I know it has 12v at the relay when I stick a test light in one of the pins. not at the fuse though. Where do I go next?
#4
Number 29 should be a 20 amp. That's just about all I know. If you have a code scanner you can plug it in and turn on your starter. It would make sense for a code to come up for that problem. Other than that I can't help anymore. I'm only 16 and I've had my Audi for about 4 months. Haha haven't gotten to that problem yet, but hey it's an Audi I should eventually have it. lol
Goodluck though!
Goodluck though!
#5
Have you tried jumping 12v straight to the fuse pin and see if the pump turns on?
As for the relay, are you finding 12v at just 1 pin or more then 1 pin?
If it is relay part # 8D0-951-253/206 (22 200 117A) I have a brand new one sitting here that I got for a friend but he ended up not paying for it.
As for the relay, are you finding 12v at just 1 pin or more then 1 pin?
If it is relay part # 8D0-951-253/206 (22 200 117A) I have a brand new one sitting here that I got for a friend but he ended up not paying for it.
Last edited by Mike-2ptzero; 11-25-2010 at 09:19 AM.
#6
thanks for the help Mike. I just jumpered 12v from one fuse slot to the #28 fuel pump fuse and I definetely heard the pump turn on. First time Ive gotten that, so now I know the pump works. Also, I have 12v on pin 17 and 19 on the relay, nothing on the others. As far as I know I still dont have spark, but maybe im not testing the right way.