Idles but dies when I give it gas

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Spark
Posts: 43
Joined: Tue Oct 29, 2013 2:33 pm
Location: Napa Valley, California

Idles but dies when I give it gas

Post by Spark »

Need a little help here….
My son is 4 hours away and his 1980 E12 has developed an issue. He had a bad alternator and so he changed it out. Now the car runs at idle but as soon as he tries to give it any gas; it dies. They have cleaned all of the ground connections and still no luck.
Any ideas?

Spark
Spark™
1987 535is (Wish I Never sold that car...!)
1987 535i (Deceased)
1984 533i (by proxy - SparkJr)
1980 528i (by proxy - SparkIII)
BMWCCA # 317548
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Mike W.
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Joined: Wed Aug 30, 2006 12:12 am
Location: Sonoma County

Post by Mike W. »

Check the plugs. The temp one for the FI. The AFM especially. Anything else around there with a plug. Make sure the connectors going to the combo relay are seated. Check fuel pressure even if it's only to see if the supply hose is harder than the return. Pull the intake boot off, then with the key on, press in on the AFM flap, the fuel pump should turn on, you should hear it run and feel it thru the fuel supply line.
Mike W.



1980 528i, 3.5 euro, 5 speed conversion
1981 528i, 3.6, Recaros and more. Project
1998 328is, quick and efficient, but not satisfying
2000 528iit, Vacation mobile/wife's grocery getter
CBradio
Posts: 283
Joined: Fri Apr 06, 2012 12:03 am
Location: Brooklyn

Post by CBradio »

Spark,

Did you ever find the cause of the issue?

Im dealing with a similar issue, doesnt die but sometimes almost does!
1977 530ia
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