ready to set this thing on fire please help

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Psymon69

Guest
ok so ive done prettymuch everything but this car still has this stuttering/missing thing!!! :argh::argh::argh::argh::argh:

high gear low rpm if i put foot it stutters

also 1st and second at about 4K and 5K RPM its has this weird missing like a superbike limiting. 3rd gear is better but sometimes it does same thing.

when i just quickly touch accelerator revs go down. also when i pull away revs will usually first go down before it goes up

when cold it idles horrible (not at all) and when hot is slightly surges but not much (sometimes not at all) but this i suspect is the ICV


right what ive tried:

swop coil
new leads
swopped distributor cap
filters are all new
sparkplugs are all prettymuch new
swopped out ECU
new AFM


injector cleaner was put in before my head went and it helped a bit but will put in more when i get a chance to go to midas

tried testing fuel pressure but that just resulted in me with petrol in my eye and on my hair.:bangdesk:


what can this be?

does anyone maybe have a fuel pump to swop out and see if this makes it better? or maybe a proper gauge?
can it be injectors?

im at thr point of taking it to a mechanic and spending too much money on this already

--E30 325i--
 
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Psymon69

Guest
Sankekur said:
Are the injectors all working properly?

how would i check that?

freerider said:
i would be willing to bet its fuel pressure related

im on the verge to buy a new one and just see what happens, im really sick of troubleshooting
 

freerider

Honorary ///Member
troubleshooting the way you are can get very expensive very quickly.

Where about in cpt do you stay?
 
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Psymon69

Guest
i know its just not working out and each time i swear it gets better a little and then no! im here close to tygervalley
 

rick540

///Member
Bring her over and let me take a squizz....

It's fuel pressure or fuel pressure regulator, everything you describe is caused by a lean fuel mixture, or alternatively a weak ignition coil, and you have eliminated the coil.
 
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Psymon69

Guest
yes its round, not have not done that, thought the E30s diagnostics are useless.

Rick the guys on the E30 forum are also saying that its pump or regulator so it might just be that. where abouts are you and are you available on a saturday? im working so late these days i barely get home before dark.

freerider said:
rick to the rescue :thumbsup:

:rollsmile::ty:
 

rick540

///Member
Psymon69 said:
yes its round, not have not done that, thought the E30s diagnostics are useless.

Rick the guys on the E30 forum are also saying that its pump or regulator so it might just be that. where abouts are you and are you available on a saturday? im working so late these days i barely get home before dark.

freerider said:
rick to the rescue :thumbsup:

:rollsmile::ty:



Shoot us a PM and lets see if I can make a plan to help, I'm in Somerset West, or can give you some advice over the phone, I just like solving mysteries.... well some of them.

 

Fordkoppie

///Member
Since the head was off........ maybe the mechanic screwed up the camtiming upon assembly and bent the valves. Compression test should clarify
 
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Psymon69

Guest
well it was doing this before head was off so dont think its that. well i hope not... the clamping did not really help but will try again a little later. also got some injector cleaner for later.
 
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