my 78 320i, any advice?

redagain · Post by **redagain** » Tue Sep 13, 2011 2:45 am

I purchased a low mileage 78 E21 that was in good running order when stored 8 years ago. So far I have drained tank, new gas , new plugs, new wires, new rotor, new distributor cap ,new condensor, new points, new fuel filter, checked for vacuum leaks and replaced some lines. When I fire it up it idles like a dream but wants to die when you give it gas. It wont take any throttle input. occasionally I can get it to rev up a bit. This is my first E21, any advice on what to try next? Thanks

nas80 · Post by **nas80** » Tue Sep 13, 2011 1:56 pm

fuel pump?

redagain · Post by **redagain** » Wed Sep 14, 2011 2:14 am

was hoping it would be cheaper...but maybe..guess its down to that or dirty injectors.

sskoda · Post by **sskoda** » Wed Sep 14, 2011 3:05 am

idling well but dying when throttled usually points to an air leak. You've maybe missed one?

redagain · Post by **redagain** » Wed Sep 14, 2011 4:56 am

I'll check tomorrow...thanks

redagain · Post by **redagain** » Thu Sep 15, 2011 1:20 am

Well , I really went over it, no vacuum leaks that I can find. A few lines in question replaced. Still dies when you give it gas. Fuel pump. Im ready for the $250 bite if need be. Thanks

Jeroen · Post by **Jeroen** » Thu Sep 15, 2011 8:16 am

Considering that price, it might be good to do a check on pressure and production first, even though I do not have any reference, anyone?

nas80 · Post by **nas80** » Thu Sep 15, 2011 7:32 pm

you could fit a fuel pressure gauge and double check?

redagain · Post by **redagain** » Tue Sep 27, 2011 10:22 pm

Well, I put in a new fuel pump and that wasnt the problem. Pulled the injectors and cleaned them. Put them back with new seals. Runs the best it has since I bought it. Actually drove it around the block. At about 2500 rpm's it flattens out and the car starts to shake and shutter no matter what gear your in. So it idles great, drives, but at 2500 rpms it hits a wall so to speak. Ive done everything and replaced everything I can think of. Stumped..

Tato · Post by **Tato** » Tue Sep 27, 2011 11:01 pm

Consume much gasoline?

Maybe these link will help you.

(K-Jetronic manual)

http://forums.bimmerforums.com/forum/sh ... ?t=1106768
(K-Jetronic tip)

http://www.bmwfaq.com/f12/regularcion-d ... ndex3.html
(in spanish, maybe can help you using google translator)

Read these in particularly
http://www.auto-solve.com/mech_inj.htm

Regards,

redagain · Post by **redagain** » Wed Sep 28, 2011 1:21 am

havent been able to drive it enough to know..

bmwe21.net forums

my 78 320i, any advice?

my 78 320i, any advice?

Re: my 78 320i, any advice?

Re: my 78 320i, any advice?

Re: my 78 320i, any advice?

Re: my 78 320i, any advice?

Re: my 78 320i, any advice?

Re: my 78 320i, any advice?

Re: my 78 320i, any advice?

Re: my 78 320i, any advice?

Re: my 78 320i, any advice?

Re: my 78 320i, any advice?