2.3 16v sierra with rs2000 ecu help

[rich123]

hi all just wonderd if any 1 had any ideas a friend of mine has put a 2.3 16v out a granada in to his sierra running a rs2000 ecu its all running idle's fine but it seems to be overfueling? and when you put the throttle down it spits and splutters like its being starved of fuel,so its seems to rich on idle and lean on throttle he is a mechanic and tryed all sorts but still nothing,i thought it might have been his tps wired backwards or something so if any 1 has any ideas give me a shout thx all

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[focusv8]

Originally Posted by rich123

he is a mechanic and tried all sorts but still nothing

Has he tried the correct ECU with the correct fuel map?
It'll probably work a lot better.
.

[Graceland]

Put the fuel injectors in from an RS2000 and that will give you some driveability back untill you can sort it properly - the injectors on the 2.3 are slightly larger cc wise and with the RS2000 ECU expecting smaller injectors for smaller engine capacity as per the map, it fires as per the rs2000 and not the Granada injectors.

Its only a temp fix but it will help a bit for the time being.....

[rich123]

he wanted the rs2000 ecu as its a better ecu and mapp and he would have had to change the ignition as they have coded keys so he totally got rid of that made a complete new loom and rewired the ecu plug from the granada to the rs2k ecu hes tring to find a 91-92 rs2k ecu so he can check that the ecu isnt faulty if any 1 has 1

[rich123]

ill let him know about the injectors but im not sure that will work as its overfueling on idle and the as soon as you touch the throttle it goes massivly lean like its shutting the fuel off as if the flood clear is kicking in

[clarke5700]

Originally Posted by rich123

he wanted the rs2000 ecu as its a better ecu and mapp and he would have had to change the ignition as they have coded keys so he totally got rid of that made a complete new loom and rewired the ecu plug from the granada to the rs2k ecu hes tring to find a 91-92 rs2k ecu so he can check that the ecu isnt faulty if any 1 has 1

a better map?????????????????????? ITS RUNNING THE WRONG ENGINE

[Mark V8]

Originally Posted by rich123

ill let him know about the injectors but im not sure that will work as its overfueling on idle and the as soon as you touch the throttle it goes massivly lean like its shutting the fuel off as if the flood clear is kicking in

Is the rs2000 map sensor connected ?

Mark

[Graceland]

Regardless what RPM the engine is running, the ECU is expecting a certain flow rate from the injectors - the bigger injectors are firing more fuel in at all revs not just idle - start as you mean to go on, change the easy things first.

Of course, if you don't want my advice (I put a turbocharged RS2000 engine in my old XR4x4 a few years ago so it's safe to say I'm pretty clued up) then don't take it - I couldn't give a cuntyfuck either way

[rich123]

no all the advice is more than welcome i had enough problems with my own and it was only by asking people i managed to get my rwd 3.1 saph twin turbo running right on a stand alone management

[rich123]

were would he get a better map for that ecu from

[rich123]

i think hes using the granada map sensor

[Mark V8]

Originally Posted by rich123

were would he get a better map for that ecu from

The RS2000 ecu runs the 2.3 no problems and will run a bit lean but be perfectly driveable with the RS2000 injectors.

Check the wiring for mistakes and make sure the map sensor is connected to the loom and the signal line to the plenum.

Mark

[rich123]

yea just spoke to him yea the mapp sensor is connected and the he had the loom made by some 1 in aircraft grade s/s wiring the only bit he wired up was the ecu plugs but hes been over that x amount of times i think this is why he thinks the ecu may be trashed but you never know

[shaun cuthbertson]

Originally Posted by Graceland

Regardless what RPM the engine is running, the ECU is expecting a certain flow rate from the injectors - the bigger injectors are firing more fuel in at all revs not just idle - start as you mean to go on, change the easy things first.

Of course, if you don't want my advice (I put a turbocharged RS2000 engine in my old XR4x4 a few years ago so it's safe to say I'm pretty clued up) then don't take it - I couldn't give a cuntyfuck either way

i have the chance of a rs2000 engine and was thinking about putting it in my sierra, i was told i would be better with a zetec ? wot u think ?

[rich123]

with the 2300 you have to make a bit to go on the block were the sump goes as youll have to put a rwd gearbox on and theres a few other things you have to do to get it in depends if you have some 1 to make the bits zetec is a lot simpler if thats any help

[Mark V8]

The RS2000 engine would be much easier than the 2.3 as it has no balancer shafts in the sump and the block is based on the 2 litre twin cam Sierra engine so the engine mounts, flywheel, sump etc from the 2 litre Sierra will turn it into a fairly easy job. You will probably have to do something with the thermostat housing as it is at the back of the engine when fitted to RWD and the RS2000 inlet manifiold also points the wrong way.

Mark

[shaun cuthbertson]

i was gonna get the rs engine, but wasnt sure if it would be worth it for an extra 25 bhp. still havnt made up ma mind what to put in it, will be using it as my runaround until i find a decent saff to do, its a hb ! had a v6 and it was good but it wasnt great ! cant stop thinking about an xe !

[Mark V8]

Originally Posted by shaun cuthbertson

i was gonna get the rs engine, but wasnt sure if it would be worth it for an extra 25 bhp. still havnt made up ma mind what to put in it, will be using it as my runaround until i find a decent saff to do, its a hb ! had a v6 and it was good but it wasnt great ! cant stop thinking about an xe !

Best bang for your buck for any Sierra has to be the 24 valve granda engine. 200bhp fit and forget for peanuts.

Mark

[shaun cuthbertson]

Originally Posted by V8 EsCos

Best bang for your buck for any Sierra has to be the 24 valve granda engine. 200bhp fit and forget for peanuts.

Mark

i was thinking that, just hope its a bit better on the gas than the auto, had a loan of ma uncles scorpio and couldnt keep it goin on fuel, and the petrol gauge didnt work ! must admit it went well tho !

[Mark V8]

Originally Posted by shaun cuthbertson

i was thinking that, just hope its a bit better on the gas than the auto, had a loan of ma uncles scorpio and couldnt keep it goin on fuel, and the petrol gauge didnt work ! must admit it went well tho !

On a very carefull motorway run I got 39mpg from my old 24 valve XR4x4

Mark

[Jim Galbally]

agreed 24v for fit n forget 200bhp

[martysport]

Originally Posted by Graceland

Put the fuel injectors in from an RS2000 and that will give you some driveability back untill you can sort it properly - the injectors on the 2.3 are slightly larger cc wise and with the RS2000 ECU expecting smaller injectors for smaller engine capacity as per the map, it fires as per the rs2000 and not the Granada injectors.

Its only a temp fix but it will help a bit for the time being.....

2.0 and 2.3 16V injectors are the same for the Scorpio and both don't flow much (175cc IIRC) the RS2K ones are 250cc.