Is my 240 odd?
 

Hello,
I am sorry for my lack of understanding in my first post here and thanks for letting me join, but I have a 240gl 200e 5 speed, registered in 1990, but it is k tonic injection?
I thought this sort of injection was replaced in 1984?
This is causing me problems as the wiring diagrams available for 90/89 just don't seem to match it and the closest I've found that does is for the GLT from 1984.
I have an issue of the fuel pump cables and relay get really hot, i have a new fuel pump both main and in tank replaced, plus the fuel filters, but it still doesn't feel like there is enough fuel pressure as it barley starts?
I hope you can help or know why this model doesn't match.
thanks,

Your car was the year they changed over from K jetronic to electronic fuel injection . It is probably a 1989 model year ... so have a look at a 1989 wiring diagram, fuel pressure checks require the volvo fuel pressure gauge and pipes and adapters and a 2 way tap ., a general purpose K jetronic fuel pressure gauge kit may have those included .

Initial starting uses a separate injector on the inlet manifold controlled by a thermal time switch on the back of the cylinder block . as soon as you let go of the starter key the cold start injector cuts off .

1990 is the first year of LH2.4 so you see some 1990 models with K jet and some with LH

When you replaced the main pump did you get the correct high pressure pump or were you sent just a normal fuel injection pump? Normal FI pumps do not make enough pressure for K jetronic

Indeed , the hot wires could be the pump for the later 35 psi system trying hard to produce the 75 psi needed for the K jetronic and drawing too much current and not able to reach the high pressure needed .