vinnya77

iTrader: (1)

Could someone please help, sometime ago I asked about my car not revving past 4k, a few people suggested it was in limp home mode due to the lamda sensor being connected. I got a new, but the car went straight in for a respray, and now I've finally put it in it's still doing it. Any thoughts please, could I have to disconnect end reconnect the ecu maybe. I just dont know.

Thanks

sailorbob

Doubt its a lambda sensor problem, at 4k you'll probably be in open loop mode and lambda sensor data is ignored by the ecu as you are out of its operating range.

july1

iTrader: (1)

First of all what's your car T34 or T25?

Franco

iTrader: (2)

Well let me stop you all there!

Mine did exactly the same a week ago, its the ECU going into limp mode.

We replaced nearly all the sensors & was going to replace the Lambda when Grove & ahmed realised what it was!!!!!!!!

Part of the loom has a multi plug by the N/S headlight which corrodes over time & fails, so they had to basicly bullet connect & shrink wrap over 20 wires together. This sorted it out!!

They had my ECU plugged into AB's laptop & couldn't work it out until Mark went & wiggled that part of the loom!

Its meant to be a common fault with most escorts (so they said) And most have had this repair done.

Does it do it once warm, as mine was fine on start up etc, but once she got warmed up then it begain playing up! As i say we was going to change the Lambda sensor............Thank god they didn't!

This was a K plate T34.

vinnya77

iTrader: (1)

Thanks for your input guys. Mines also a K plate T34 but it does when warm and cold.

Franco

iTrader: (2)

I'd still be inclined to check that mate!

Richie Russ

Have to totally agree with Franco, once my engine was in, it wouldnt rev past about 3k and sounded very very ill. We tried everthing as we all do and still the same, then we discovered a wire which was nearly completely corroded by the coil, fixed that and off she went

july1

iTrader: (1)

First of all run an autodiag!
This will lead you to the faulty item then it will be time to look to any multiplug on this way very carfuly!

Franco

iTrader: (2)

Funny thats what we done, and kept saying the coolant sensor was out of spec.

Franco

iTrader: (2)

Opps sorry, we done the ECU pin check!

july1

iTrader: (1)

yes, everybody knows this world is'nt perfect, but this help to find where the problem should be. so you should start by this, check the sensor when possible, (very easy for ACT and ECT as they share the same kind of resistor and @20°C(engine cold so) you should read the same value for both) and then look to the harness of this sensor and finally check all connections (especialy the ones known to be weak). that's the correct way to do it m8!

big-dirty-dog

i have this now and again,still have the multi-plug thing in the bay so could be that,BUT when it does happen i turn off ignition and back on again and its ok??

Dave Henshall

has it just started it for no reason, or has some work just been done on the car... anything that might have disturbed some cruddy connections,

i ended up (one at a time) chopping out the multiplugs near the headlight,soldering them together and heatshrinking them beofre taping them all back up in the loom.

vinnya77

iTrader: (1)

I'm off on holiday the weekend, but I'm hoping to get some time to my self Friday so I'll gave that a go Friday if I can, I would like to go away with it working and not be thinking about it while I'm away. Thanks for all your input, one thing that concerns me about the multiplugs, is that I've had the car 3 1/2 years and it's lived indoors, why would it happen now? Although they have been apart and had conductive gel put in them, or some waterproofing gel, something like that when it started playing up.

Dave Henshall

it could just be the fact that they have been seperated, could be just enough as they are a very common ponit of failure.

MONSTER

What are these multiplugs for? and would it cause me grief in the future if i were to remove them?

Franco

iTrader: (2)

They just join 2 parts of the loom, by/around the headlight area. I suppose it won't hurt to have this mod done, as i said Grove Garage are always sorting this out!

Mr.Ford

Did you already tried to change the sparkplugs??

july1

iTrader: (1)

Take care if you wanna put so conductor past or whatsoever in the head loom multiplug since another common problem with it is that the pins sometimes slide backward inside the plug so after connecting the plugs together check the pins one by one from behind to see if they look in place...

herb

Mine did the same thing after a service.
Turned out they put new plugs in with a standard gap, being 370 bhp i reduced the gap to 0.6 and away she went.
Then i to found she was starting to splutter under full load.
this was due to a fooked coil cap,sorted that and now goes spot on.

Franco

iTrader: (2)

Did you find the fault Vinny???

vinnya77

iTrader: (1)

Been to Egypt just got back this morning, but I left my car with someone whilst away. Should be done. FIngers crossed. I'll let you know.

Franco

iTrader: (2)

Alright for some!!

Hope its sorted