engine changover problems plz help

[BoZZa17]

hey guys,

ok just swapped engine and gearbox over..

changed from an eb1 engine to ea1 engine
and auto to manual gearbox

the car runs, ie i can drive it around the block a few times..

however it is really rough around idle... like once i get above 1500rpm it smooths out a bit but still feels like i is missing,

i changed over to the manual ecu and it does the same thing but once i drive round the block around 4 times it will cough and splutter worse and make it undrivable/movable

so i put the auto ecu back in and it becomes driveable again however still really rough and jerky.. and not like a little rough like nearly braking engine mounts type rough

the tps on the eb1 motor had like 2 of them double stacked
the ea1 engine in the car now only has 1 tps would this make a difference??


any other ideas would be great

the distributor wasnt moved during the engine changever nor were the leads /plugs/coil

i have tried pulling the injector plugs off one by one but doesnt narrow down the problem to one or 2 cylinders seems all the lot arnt right? =\

weird

anny help appreciated thanks

[InitialD]

The dual TPS setup austin is for auto only, since your now manual you only need one ;) so thats not your issue.

have you made sure the MAP sensor and all other sensors are connected right? Does it start ok? or does it struggle?

[InitialD]

Also austin,
the manual ECU your using? its 90DA isnt it?
Because if your using a Series 1 EA ecu in a EB1 (same as EA series 2, 30th anniversary) you will have issues, know from experience

have you checked your ignition timing aswell? It might be out of sorts, I know you said you havent touched the dizzy but its a good place to start. check all the vacumn lines aswell

[BoZZa17]

hmmm
well ok happy about the tps issue, coz it makes sense now y i have a 3pin tps plug that goes to nothing... its justsitting ontop of the inlet manifold atm.

umm the manual ecu is:

87-da-ad
7DAD

i think... well thats what it says on the sticker at the bottom

i have not checked the ignition timing at all.
all vacum lines seem to be ok i THINK i have them all in the right spots
map sensor is all in proper,
tried different oxy sensor

i gues all thats left is ignition timing.

its strange tho. as i run the engine a few times before i pulled it out the car and was all good.
now then i put it from one car to the other its stuffed? so im assuming the dizzy is ok. but i guess it would norrow it down if i went out and checked it.

[InitialD]

You need a Series 2 ECU for it Austin ;) 90DA one. Should be like $70 from OzWreck, or something like that from other wreckers.

[NZ]

Mick, why does he need a series 2? Not doubting you I just have never heard of anything different in the 3.9 ecu's

[AUII_Forte]

I was running an EA1 ECU in my EBII and the only problem I had was the A/C compressor wouldn't engage due to the EBII having the A/C cut @ WOT feature.

[InitialD]

Originally Posted by NZ

Mick, why does he need a series 2? Not doubting you I just have never heard of anything different in the 3.9 ecu's

Im just going off what ive been told and noticed. I tried a Series 1 ECU in my Series 2 EA and it had issues everywhere, ran rough aswell :S Soon i put a Series 2 one in, it all sorted out. The Series 1 ECU in question runs perfectly in my old lady's Ea aswell ;)

Just what what austin described was exactly what my car did with the Series 1 ECU ;)

[BlOWN-EA]

how was the dizzy not moved when you converted from one engine to another?
If you got the other with a dizzy then i would check the ign. timing, if its not that,
definatly check your map sensor, connections etc. even check the map sensor, you may not of swapped it but these things happen ufortuantly, what is your ground to your ecu like??? does it blow smoke, steam, nothing? check the new engine does it have good compression is it a constant missfire on one cylinder, multiple or anlternating???

[Paris Hilton]

Ea Series 1 ECU's don't differ from auto to manual, but they do differ from Spac to Ghia...

[NZ]

Originally Posted by Selekta

Ea Series 1 ECU's don't differ from auto to manual, but they do differ from Spac to Ghia...

What are you basing your information on?

[BoZZa17]

hmmm well
basically
the car i pulled the engine out of ran fine when i had it in the car... i pulled the engine out (not toutching dizzy)
and put it in my car
now it doesnt even start without me putting foot to the floor

basically im trying to narrow things down
are the engine wiring looms fdifferent from ea1 to eb1?

seemed to be all plug and play when putting the engine into the car
everything lined up, except i have one empty tps socket.

[BoZZa17]

umm the earth to ecu is perfect (ecu is in proper spot and bolted in)
engine is hard to start and cant really keep it running to check what cylinder(s) arnt firing

[sphell]

did you hook up the earth strap that goes from the starter to the body near the transmission tunnel on the INLET manifold side? it's easy to overlook and can cause problems.

[BoZZa17]

yeah its connected. ta

[BoZZa17]

is there any difference between the ea1 map sensor and eb1 map sensor?
i am using my eb1 map sensor on the ea1 motor.

did the coil get wet at all? might be worth it to try another one. TFI maybe? have you checked for good spark?

[sphell]

map sensors are all the same.

did you remove the manifold to get the engine in/out?

[BoZZa17]

nope inlet stayed on dizzy stayed on plugs and leads all stayed on all injectors stayed on
i literally just pulled the engine and box out and switched them with my car's

[NZ]

Try swapping over the plug for the tps. You may have plugged in the auto trans plug and left the engine one swinging in the breeze. That will cause you problems if thats whats happened.

[BoZZa17]

whaaa? there is no auto tranny in the car? explain more?

[NZ]

Since you now have a single tps on the throttle body you will be left with the one plug with no where to go. Its possible that this plug is for the ecu for the engine thats not plugged in. You may have plugged in the one for the auto ecu.

Auto has an ecu and has its own tps
Engine has its computer and has its own tps

You may have the wrong one plugged into the single tps you have now.

One other thing you might like to check is that the fuel lines went on the right way.

What type of engine came out and what went in? Multi point and multipoint?

[neb]

if the fuel lines are wrong it wouldn't run at all would it?

[NZ]

probably not neb just trying the simple stuff that can be over looked.

[BoZZa17]

umm ok ill try the tps gigga now
and yeah both were mpfi


just checked all cylinders DO have spark

[BoZZa17]

ok tried the ea map sensor makes no difference,

the 2nd tps plug (thats currently going to nowhere)
isnt anywhere near where the normal tps could reach,
i guess it would be possible that ford made the entyre wiring loom different but i dont think they would
as there is no chance in hell that the tps would reach the empty socket id say the one left empty is for the auto transmission computer

[BoZZa17]

the only thing(s) i can think of left to check are:

the ignition timing
OR
maybe the engine loom is different
and doesnt simply plug into the loom in the car?

jusrt make sure all the wire colours match the opposite end of the plug on the MPFI loom. also did your car orriginally have the pink wire that sits above the throttle body? did the other loom you put in have the wire to? maybe the fuel pump is dodgy? im out of idea's now....

[Paris Hilton]

Originally Posted by NZ

What are you basing your information on?

fordmods

[BoZZa17]

yeah i will get out there and check if the wires match up on the injector/inlet manifold loom

but im nearly out of ideas

oh and the fuel pump was fine on friday last week. + the rail is pressurised (if i slowly undo the fuel-in line it sprays out.) so i think the pump is still fine.

really starting to s...hit me now