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not so mega squirt
theconrodkid - 25/12/06 at 02:04 PM

being the sad heathen that i am,ive been playing with sweet pea today.
ive got injectors firing and a spark but the pump wont run.
am i right in assuming that the pump relay earths through t 37 on the squirty box?
earthing the wire that goes to t37 makes the pump run so thats all in order.
at idle i have 3.3m ohms on t37 and 8m on cranking.
only 1 earth wire (7) and that has a good reading,any ideas?

TangoMan - 25/12/06 at 02:22 PM

I have not got that far yet but from all the info I have and from the diagrams the fuel pump relay definitely earths through t37.

theconrodkid - 25/12/06 at 06:37 PM

hm...looks like a prob inside

TangoMan - 25/12/06 at 07:11 PM

Have you checked it on a Stim???

theconrodkid - 25/12/06 at 07:25 PM

nope,bought it ready built and tested

omega 24 v6 - 25/12/06 at 07:39 PM

Lack of info or really wrong??
I should like to think you're not earthing the pump direct through the megasquirt. You should be earthing the coil of the fuel pump relay.

Surrey Dave - 25/12/06 at 07:46 PM

Its Christmas!! get inside and eat too much ,watch crap tv like the rest of us

TangoMan - 25/12/06 at 07:56 PM

quote:
Originally posted by omega 24 v6
Lack of info or really wrong??
I should like to think you're not earthing the pump direct through the megasquirt. You should be earthing the coil of the fuel pump relay.


Too much Christmas tipple. He does say the relay is earthed to t37. I had to check though

I just had a thought though.... One earth wire from t7. My diagram shows 7,8,9,10,11 and 19 all earthed. Could this be the problem?
Also, is there any reason you would see more resistance on cranking??

theconrodkid - 25/12/06 at 08:48 PM

all the other earth go to 7,and yes it is earthing the relay...not that sdupid
i can of course earth it separability but after solving that prob it still wont start without a squirt of fuel by me into the bodies.
injectors are firing so not enough fuel pressure or duration?


leave it dave

[Edited on 25/12/06 by theconrodkid]

omega 24 v6 - 26/12/06 at 10:34 AM

quote:

all the other earth go to 7,and yes it is earthing the relay...not that sdupid

Sorry, I relay (pun intended) should have ready the question better. To much food has made my stomach pull the skin from my forehead over my eyes.

theconrodkid - 26/12/06 at 12:01 PM

Mark,i dont have laptop or the foggiest idea what goes on inside these boxes,the pump running bit i can live with,it just dosnt seem to inject any fuel(spinning engine with throttle open and peering down the hole).
fuel pressure seems a bit low but its only sposed to be 43psi,maybe a duration prob

theconrodkid - 26/12/06 at 01:26 PM

WAAAAAAAAAAAAAAAAAAAAAAA SHE RUNS!!!!!
twas lack of fuel pressure,clamped off return and she fired so i re-routed the pressure reg,she idles and revs up clean....pitty there is no cooling system or exhaust on

TangoMan - 26/12/06 at 08:58 PM

quote:
Originally posted by CaLviNx


NO physical cable link required between the ECU and a laptop, as bluetooth is being integrated into the system.


I like the sound of that!!!

theconrodkid - 15/1/07 at 07:38 PM

oh to be clever
should have stuck to carbs and things i understand

NS Dev - 16/1/07 at 04:41 PM

you didn't have the reg before the injectors did you Conrod???

theconrodkid - 16/1/07 at 05:31 PM

tried the reg in the return line and i had no fuel to injectors,its in the flow now showing 43psi that the injectors (gsxr) specify,ill have ecu back at weekend,it deffo had some probs,ie progd for a 7 pot? and unable to change to a 4 pot.let ya know soon