Rb20 In A 240sx, Wont Start

[laxian55]

I just bought a 240 with a RB20 in my 89 s13 and was driving the other evening and it just shut off and will not restart. I have done a fair amount of wire testing and nothing in the ignition system or the fuel pump is getting power. This leads me to believe that it is the ECU, how can i test the ECU to be sure. Also where can i buy a replacement ECU for a reasonable price.

[blind_elk]

What does work? Headlights? Instrument lights? Indicators? Instrument warning lamps? Radio?

Have you checked all the fuses? Have you checked the fusible links on the +ve battery terminal?

[laxian55]

What does work? Headlights? Instrument lights? Indicators? Instrument warning lamps? Radio?

Have you checked all the fuses? Have you checked the fusible links on the +ve battery terminal?

Everything else seems to work fine and have power. We arent getting any spark and the ignition doesnt seem to be getting any power, nor the fuel pump. The red led on my ecu is stuck on.

Edited October 23, 2007 by laxian55

[QWK32]

does the fuel pump prime at all? if it does then it could be the IGN start signal to the ecu has a faulty connection. if it doesn't, can you easily get your hands on another ecu. if not you could check you ign and injection grounds. unplug the ecu and put a voltage down the line that is supposed to switch the fuel pump on. if it primes up doing this then i would be looking at the ecu.

[GTS4WD]

Coil packs? Ignition leads? Ignition Module? Everything earthed properly? Ignition Wireing? Is the loom properly connected to the ECU? Screwed on tight?

Depending on where you are, theres a few places, Just Jap, SSS, I think last time I was in Up garage in Syd I saw a lazy RB20DET ecu. Try the e-bay, theres a fair few people flogging off pretty cheap.

[WazR32GTSt]

Coil packs? Ignition leads? Ignition Module? Everything earthed properly? Ignition Wireing? Is the loom properly connected to the ECU? Screwed on tight?

Depending on where you are, theres a few places, Just Jap, SSS, I think last time I was in Up garage in Syd I saw a lazy RB20DET ecu. Try the e-bay, theres a fair few people flogging off pretty cheap.

with a 240sx i'm guessing the USA...

[pure_methamphetamachine]

you dont have an alarm do you? your alarm will interupt all these if installed properly, aand if alarm packs out, all chief systems die.