fuel injector earthing points

[gjm]

occassionally when i go over a bump the engine splutters and seems to have no power and struggles along as if on 4 cylinders and then it leaps back into life a few minutes later (usually when i hit another bump!) it has been mentioned to me that this could be caused by a bad earth on one of the banks of fuel injectors - with the jolt breaking the connection until annother jolt re-establishes the connection. does anybody know where the fuel injector earthing points are so i can check the connections? '92 4.3 pre-cat griff

[GreenV8S]

occassionally when i go over a bump the engine splutters and seems to have no power and struggles along as if on 4 cylinders and then it leaps back into life a few minutes later (usually when i hit another bump!) it has been mentioned to me that this could be caused by a bad earth on one of the banks of fuel injectors - with the jolt breaking the connection until annother jolt re-establishes the connection. does anybody know where the fuel injector earthing points are so i can check the connections? '92 4.3 pre-cat griff

On my V8S, there are resistors on the chassis in front of the driver's footwell, I believe these are the injector ballast resistors and the injectors earth through them.

[HarryW]

Is that what they are Peter I took them to be the temp sensors for the ice detector and mines on the passenger side to boot.
I'm not sure that the 14CUX and associated injectors had ballast resistors though , altouugh yours may not now be standard

The main engine earth on mine is drivers side and is quiet a substantial one at that.

As an aside I checked earth continuity through then various bits when cleaning mine all up recently but could not get continuity on the air flow meter is this normal

Harry

[shpub]

There are four earth points: two under the central console, one under the rad and another in the driver's wheel arch.

The earth connections for the injectors is taken through the injector loom back to the ECU.

Steve
www.tvrbooks.co.uk

[soddy]

The loom also connects to engine earth at the rear of the drivers side head (or somewhere nearby) I beleive this is a direct earth for the injector feeds on the engine side of the loom.