The 1981 shows the connector and I am unable to find that and I havent tested from the coil itself I tested from relay pin 31b and it shows constant ignitiom power.

 

so then it would be closer to how my 82 turbo is? Im still learning to speak volvo lol. This is my first one that im building.

 

Yes it would be similar if not the same because the turbos had this furl setup

 

Well good luck bud your beyond my volvo knowledge lol. If you want to put it on a 4x4 frame and small block it im your guy lmao. Seriously though i have seen pics of 4x4 wagons that were sick.

 

I just checked and I do have pulsing at the ignition coil 1 but at 31b in the relay it is a constant power. So does this mean there is a fried wire at that connecter if there is one?

 

it sounds like its not connected properly somehow.

ignition coil pin 1 has just one white wire on it? it comes from ignition control unit pin 16, and it also goes to the fuel pump relay pin 31b. in 1980, said ICU looks to be on the side of the water bottle (window wsaher?) behind the right headlight. I think I'd attempt to follow that white-red wire from 31b in the harness to where it goes, I realize this isn't easy.

edit: oh, I looked closer at the 'locator' diagram for the 1984 KE-Jet model (which wasn't sold in the US but may well be closer to your 81 than my 1980 diagram). there's actually TWO connectors in that circuit. connector "V" where the wires are spliced is right next to the ICU module. there's also a connector X shown inline on the white-red wire to the fuel pump relay, this is next to the right side hood hinge.just aft of the right side wheel hump, and just forward of where the harness takes a turn below the wiper motor.

 

Coil pin 1 is white-red and icu isnt that the black small ecu under the other ecu by passenger kick panel?

 

sigh, volvo used a bunch of different ignition systems on 240's. my personal knowlege is of the 1987-ish LH2.2+Chrysler system, and the 1989+ LH2.4+EZK system. As I said, I don't have the 1981 greenbook nor can I locate one online. I have 1975-76, 1977-78, 1979, 1980, 1984, 1985, 1986, 1987-88, 1989, 90, 91, 92, early 93, and late 93.

on the 1984 KE-Jet, that small control unit under the other in hte passenger footwell is the "CIS" Constant Idle System (not to be confused with CIS Continuous Injection System, which is what most folks call KE-Jet injection). Both the 1980 and 1984 KE-Jet diagrams show the Ignition control unit on the side of the windshield washer bottle.

in the passenger footwell on the 84 KE-Jet, the larger CU is for the lambda (o2 sensor). The 1980 didn't have this at all, nor did it have the 'constant idle system'.

anyways, look under your hood, on the side of the washer bottle, is there a electronic module ?

 

There is a black box but on the constant idle system the module is under the lambda ecu

 

 

So the first picture is said box on side of washer jug and the second picture is what I have looked up to be idle speed control module under the lambda ecu

 

right, so the box on the washer jug is your ICU. there should be a white or white-red wire coming from it, and that wire goes to a connector/splice somewhere nearby that has two more white-red and/or white wires, one of which goes to the fuel pump relay, and the other goes to the ignition coil.

 

I found that but what does that mean? I have pulsing power at ignition could and but I have constant power at the relay.

 

well, somehow the wire to the relay isn't connected to the ignition circuit, your job is to figure out why.

 

It is connected because it has power upton ignition turning on.

 

yes, but WHAT is it connected to? its supposed to be connected to the same circuit as coil pin 1.

 

So it is suppose to pulse just like it does on the coil?

 

yes, I've said that 2-3 times already. its supposed to be connected to the same wire. ICU output -> coil and fuel pump relay.