e30 323i problemzz plz help

[kushesh]

hi guys

i got a e30 323i 1986 conv the problem im having is that the car starts but does not rev up pass 1000rpm i put a new afm but still the same

wud it be the computer box?

i put my friends e30 320i 1986 computer box in and does not even start up

is there a diff between a 323i an a 320i comp box?

i opened the the computer box out and there is abit of rust on the one side of the circuit board

plz help guys
thanks

[James Crivellone]

Check for a good ground on the spark generator (on the firewall blower motor cover)

[Court M3]

if you happen to need a comp send me the number off yours I might have one soon

[kushesh]

thanks guys

so youll think it cant be the computer box?

[kushesh]

court m3 thanks but how will i get it to South africa

[Jordan325iC]

I'm nearly certain that putting a "computer box" from a diffrent model car into your car will cause it to not start. Your dme numbers have to match (found on the bottom of your ecu).

[kushesh]

ok guys put another comp box with same numbers still not working could it be the fuel pressure from the pump?

[James Crivellone]

ok guys put another comp box with same numbers still not working could it be the fuel pressure from the pump?

check the distributor, it should have a little connector on the side which has 2 wires on it (may be 3, been a bit since I've looked)

Make sure that is nice and tight, otherwise it won't know engine RPM.

I presume this has the L-Jetronic ECU? If it won't go above 1000 it sounds like the spark generator has no idea what the RPM is. Just a hunch though.

[kushesh]

thanks james
it does a have a jetronic system
where would i find the spark generator?

could it the fuel pressure from the pump?

thanks again

[James Crivellone]

thanks james
it does a have a jetronic system
where would i find the spark generator?

could it the fuel pressure from the pump?

thanks again

Its mounted on the blower motor cover (firewall) small little silver plate with a rubber cap on it, with a connector coming down.

Its near the fusebox.

[A_325i]

did you plug the afm in?

[kushesh]

yes i did

could it be the fuel pressure regulator?