nitemare gen 3 sti
29 April 2014, 08:43 PM
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nitemare gen 3 sti
hi guys!! newbie here!!!
having a mare with my import sti classic,
i replaced the entire longblock for a sti rebuilt unit,
i swapped all my sti components over, including inlet and sensors,
on starting it after rebuild it fired then died? i have a spark, and i have fuel, compression is good, i have seen these syptoms before on here but nothing that really helps, i have checked my sump and the oil is petro:l saturated,
if i leave it a day it fires again and dies instantly. , really confusing as the car ran fine before the engine swap, i have checked the belt, all good, , can anybody shed any light on this please, i would really appreciate some help with this nitemare!! thanks chris
having a mare with my import sti classic,
i replaced the entire longblock for a sti rebuilt unit,
i swapped all my sti components over, including inlet and sensors,
on starting it after rebuild it fired then died? i have a spark, and i have fuel, compression is good, i have seen these syptoms before on here but nothing that really helps, i have checked my sump and the oil is petro:l saturated,
if i leave it a day it fires again and dies instantly. , really confusing as the car ran fine before the engine swap, i have checked the belt, all good, , can anybody shed any light on this please, i would really appreciate some help with this nitemare!! thanks chris
Last edited by sticlassic chris; 05 May 2014 at 07:29 PM.
29 April 2014, 09:21 PM
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plugs are the right way round, ive checked everything that i can think of, , the fuel in my sump, is from constant cranking and not firing, the chap i got the engine from confirms it is sound, he said he thinks my injectors are stuck open!! but i dont see how or why that would be the case, anybody ?!!
Last edited by sticlassic chris; 29 April 2014 at 09:44 PM.
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30 April 2014, 01:14 PM
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Hang on. Are you saying you are using a wrx engine with the sti ecu. The cams are different for a start plus injectors are bigger on sti than wrx. You will need the wrx injectors and ecu .I am not sure if you can fit the sti cams without the sti valves,springs and followers if you wanted to use the sti ecu and injectors
30 April 2014, 07:18 PM
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Hang on. Are you saying you are using a wrx engine with the sti ecu. The cams are different for a start plus injectors are bigger on sti than wrx. You will need the wrx injectors and ecu .I am not sure if you can fit the sti cams without the sti valves,springs and followers if you wanted to use the sti ecu and injectors
30 April 2014, 07:27 PM
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If you just want it running fit the wrx injectors and get the wrx ecu. sti and wrx head castings are the same. Sti valves are different to work with the different lifters that allow the sti engine to rev to 8500. Also the cams have a more aggressive profile. If it was me I would use the wrx ecu and salvage your sti heads if you can and fit them at a later date . its a shame really to have a wrx engine in an sti. The main difference is the head running gear and stronger pistons
30 April 2014, 07:34 PM
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If you just want it running fit the wrx injectors and get the wrx ecu. sti and wrx head castings are the same. Sti valves are different to work with the different lifters that allow the sti engine to rev to 8500. Also the cams have a more aggressive profile. If it was me I would use the wrx ecu and salvage your sti heads if you can and fit them at a later date . its a shame really to have a wrx engine in an sti. The main difference is the head running gear and stronger pistons
30 April 2014, 07:35 PM
#18
Hang on. Are you saying you are using a wrx engine with the sti ecu. The cams are different for a start plus injectors are bigger on sti than wrx. You will need the wrx injectors and ecu .I am not sure if you can fit the sti cams without the sti valves,springs and followers if you wanted to use the sti ecu and injectors
30 April 2014, 07:45 PM
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The sti heads are of value. They are well engineered and can be run to 600hp. Stick the heads on and you can run the sti ecu and injectors. Your wrx heads won't be the same spec hence will not run properly even if they have been ported, bigger valves etc which I doubt tbh. Are you sure its forged BTW. Trust no one I've been had myself in the past.a wrx engine should run about 330hp when mapped. Sti engine can do 400hp but your box might explode lol
On my phone BTW that'd why my answers might be disjointed
On my phone BTW that'd why my answers might be disjointed
30 April 2014, 07:51 PM
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WRX longblock will run fine with STI ecu and injectors in an STI. This is not your problem. The ecu you have is mapped for the 440's. It may not be ideal but will run and drive fine
Last edited by scubbay; 30 April 2014 at 07:54 PM.
30 April 2014, 07:59 PM
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The sti heads are of value. They are well engineered and can be run to 600hp. Stick the heads on and you can run the sti ecu and injectors. Your wrx heads won't be the same spec hence will not run properly even if they have been ported, bigger valves etc which I doubt tbh. Are you sure its forged BTW. Trust no one I've been had myself in the past.a wrx engine should run about 330hp when mapped. Sti engine can do 400hp but your box might explode lol
On my phone BTW that'd why my answers might be disjointed
On my phone BTW that'd why my answers might be disjointed
for now i think ill take the wrx ecu route until a later date, i would be happy with getting it mapped ,as it would still bring the power up over the standard 280 bhp i was getting, the wife would moan like hell if i were to run much more power than that, shes scared of it as it is, lol, i really appreciate your input on this, just need to locate an ecu now, and make sure i get the right one,
30 April 2014, 08:58 PM
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i have, mine are fine, i unplugged the injectors on mine today and started it up, it ran on easy start straight away, defo overfuelling, cheers though KWIK,
30 April 2014, 11:16 PM
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just found an ecu from an imported wrx gen 3, 98 model, 3 plug like mine, and the numbers are almost identical in both the serials, apart from the last 2 digits, . do you think that would be ok? mine is a 6s, and the wrx one is an 8s,
Last edited by sticlassic chris; 30 April 2014 at 11:18 PM.
30 April 2014, 11:58 PM
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OH? it said on the listing import. damn, im gonna struggle with this one. lol, i can see me buying shed loads of ecu,s and none working, all i know is mine is a 3 plug yellow 6s,
Last edited by sticlassic chris; 01 May 2014 at 12:00 AM.