silvertop into aw11 - won't start!! - fault code 12

[levinguy]

hey
have just put a silvertop into an aw11 and it starts but it won't rev at all,
anything more then a small amount of throttle will just stall the engine, what have i done wrong?

tried searching but that brang up nothing

[Alex B]

Got any fault codes?

[Leon]

Starting, idling, and then dying when throttle is applied can be a bunch of things. Do you have a spare ignitor unit you can swap onto it? My old Corolla GT did that when the ignitor went bung.

[levinguy]

never thought of fault codes.. too hung over from the night before,

it brang up 14 - which is ignition i think

will try another igniter, earth is good.

thanks for the help so far

[levinguy]

ok now it won't start at all.. no codes now either

[levinguy]

has fuel coming out the return
has spark

no codes are coming up

any ideas why it wont start? coil/igniter earthed straight to battery

[Lloyd]

Has it got decent spark or just a weak looking spark? What are the plugs looking like?

[levinguy]

spark looks decent - but i could be wrong
fault code of 12 comes up now
brand new leads and plugs

[levinguy]

pulled a plug out, a bit of oil, not to much, black with a bit of white on the end

[85AW20v]

Check that there is an earth in place from the AFM - I think it's white with a black trace. Also, when you hold the AFM flap open with the key on, the fuel pump should run - if it doesn't you've got a wiring problem with the circuit open relay and fuel pump.

[levinguy]

got the fuel pump wired straight to 12v with the key on, had a circuit open relay hooked up, but i wanted to erase that from the equation, will hook it back up when the cars going though!

[postfach]

According to the site I just found, code 12 is RPM or Knock Sensor.

[levinguy]

12 RPM Signal
Diagnosis
* No "NE" or "G" signal to ECU within 2 seconds after engine has been cranked.
Trouble Area
* Distributor, or CPS, circuit
* Distributor or CPS
* Starter signal circuit
* ECU

so should i just run new wires from the dizzy to the ecu?
i mean i could have damaged some wires taking the loom in and out, i did this after it first started, just trying to think what could have changed

[sergei]

Have hooked up earth terminal next to the thermostat housing?

[levinguy]

yeah, well what was on there before, its two wires coming from the engine loom that ground there, sound right?

[flygt4]

when i had issues with my dizzy i was able to check the continuity of the wires back to the ecu , and look for the small voltage to see if it was triggering correctly.

[levinguy]

might sound stupid, but how do i go about doing that?

[levinguy]

now it only brings up the code 21, after clearing the codes again which is oxy sensor, no biggie, would just run richer without.

im really frustrated and confused now!

[levinguy]

pulled the loom, dodgey injector 12v. will re-do it and hopefully will be going!, feel so stupid now that i found it but oh well

thanks for all the help, really appreciated