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Injectors Aren't Pulsing In My Rb20det

kails

By kails,
in Engines & Forced Induction

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kails Proficient

kails

Posted
Posted

Hi guys and girls,

Got a bit of a problem have put a rb20det into a 4 door 32 but have come across a bit of a problem. I have fuel and I have spark but the injectors aren't pulsing and I have replaced CAS to see if that was the problem but it hasn't changed. The motor cranks and wants to start I even sprayed Start Ya Bastard into the throttle body and it started to run but wouldn't continue to idle just ran back to cranking.

What could it be???? I've looked around and its said to change CAS but it still hasn't helped.

Your help will be appreciated.

Ta,

Kails

kails Proficient

kails

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  • Author
Posted
what was in the car before the 20 went in? stock ecu and wiring on the 20?

Yea engine, ecu and loom came out of my 32 2 door (it was a stock engine, loom and ecu) it got transplanted into a 180 never wired in just sat there and then have gone from the 180 to the 32 4 door so unless maybe its been sitting for a while and injectors have seized or something?????

No injector pulse still sounds like CAS issues.

Are you 100% sure it was the right CAS?

i've got a couple of spare ones so might try another and see if it works just unsure if there could be any other problems it could be

:S

blind_elk Grand Master

blind_elk

Posted
Posted

If you have spark, then presumably the CAS is working correctly.

As I asked in the other copy of this thread (!!!!!):

Have you got power (+12V) at the injectors? Did you have the injectors cleaned before you installed the engine.

QWK32 Veteran

QWK32

Posted
Posted

with all the engine swapping its possible the power to the injectors hasn't been rewired.

you can either check the injectors for 12v positive power at the injector plug itself or at the ecu. do you have a RB20 ecu pinout? they are easy enough to find if you don't. at the ecu check pin 109 has 12v (positive), you can also check that pins 107, 108, 116 on the ecu are grounded (negative).

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