vx coughing and spluttering after v6 engine swap with wrong engine

[bogan_vk]

a mate of mine just swapped his engine in his vx v6 over to what looks to be a vs v6 from an unknown vehicle we have the thing running and driving ok but it coughs and splutters there is a plug near the back of the manifold that goes to nothing and the computers between the two are totally different codes on them and different plugs, so in short its a vs motor using a vx loom and computer what would be the best course of action to fix his f**k up change loom and computer to vs specs,change complete manifols and valley cover to vx specs or would something else cause this or would another course of action be more appropriate? this has me stuffed what to do to help him fix his car ..

[Super_Low 91]

pretty sure you cant have a motor from an older car in a newer car

[bogan_vk]

yeah thats what i told him ,but hes already put it in, so im trying to work out a way to get it running right for him with the least amount of work as i hate working on v6s.

[Low_VX_Taxi]

a mate of mine just swapped his engine in his vx v6 over to what looks to be a vs v6 from an unknown vehicle we have the thing running and driving ok but it coughs and splutters there is a plug near the back of the manifold that goes to nothing and the computers between the two are totally different codes on them and different plugs, so in short its a vs motor using a vx loom and computer what would be the best course of action to fix his f**k up change loom and computer to vs specs,change complete manifols and valley cover to vx specs or would something else cause this or would another course of action be more appropriate? this has me stuffed what to do to help him fix his car ..

I dropped a VS engine into my VX and the only real differences I remember are the plenum and runners, from what I understand the the PCV ports are in a different location on the VS to VX, the injectors are apparantly different too but not 100% on that.

Best bet is to go unbolt the entire plenum/runners etc from the old VX motor and bolt them onto the new VS motor.

[ephect]

as far as legality goes, you'll have to let vicroads or whatever state motor authority know about the new donk, when they look it up, itll display from a VS and they'll tell you no, you cant put an older motor in a newer car from a different model.

aside from that, swap your manifolds over so you have the erg stuff, i think theres a sensor on the back of the manifold for it. VT/X also has 1 sender for temp to gauge and ecu, swap the VS one which has 2 wires for the one from your VX. leave the VS gauge sensor in there, no wires attached (essentially a plug for the hole)

leave your VX ecu in the car, dont swap it! find out what plugs you have left over from a manual, im sure the manifold swap should jsut about do it. i know there is another sensor or thing you have to change, but i cant think of it now.

where you located?

[bogan_vk]

im in melton seems the manifold swap would be an easier option , legality dosent matter as i highly doubt he,ll even tell vicroads about the swap, he just wants it running properly.

[VK SL 3800]

In nsw your not allowed an older engine, but your are allowed to bring the older engine up to the required emissions and fit it, so a vs ecotec would require the vx intake manifolds with the Egr system set up to be legal.
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[ephect]

ignore vicroads, tell him it may affect his insurance/claiming if he doesnt let them know. im sure u could just tell them its out of a vx then give em the block id.

keep us posted on your progress and if theres anything else we can help out

if it was next week i may have been able to come out and give you a hand.

[bogan_vk]

will do ephect, well attempt to get it done during the week, as he is well and truly over it atm its doing his head in.

[wraith]

It's not about older vehicle it's more about compliance to epa laws. The older engine may not comply. Being the same series of motor you could get lucky. Doesn't hurt to ask the RTA.

[ephect]

Vx had the EPA stuff upgraded, which it may not pass since the vs didn't have that level of EPA gear

[bogan_vk]

found out today that he soaked his injectors in petrol for 2 days whilst putting the engine in , would this stuff the injectors? as the electrical connectors would have been submerged.

[ephect]

nar they should be fine, there a sealed unit. the electricals wont suffer from the petrol.

[bogan_vk]

thanks so i wont bother changing them just yet.

[ephect]

I guess if he's concerned eBay $168 for new injectors or use his originals From his vx but I'd just concentrate on getting all the plugs sorted first

[bogan_vk]

yeah well get everything else sorted first and if theres still issues then ill change injectors, hes got a couple of sets from spare engines he has lying around.

[itsagixa]

im in melton seems the manifold swap would be an easier option , legality dosent matter as i highly doubt he,ll even tell vicroads about the swap, he just wants it running properly.

and when he runs up the ass of someone else or has an accident his insurance will be invalid....no wonder we pay such high rego its because of idiots like this who just do whatever they want with no regard for the law.....its a law for a reason mate

[bogan_vk]

and when he runs up the ass of someone else or has an accident his insurance will be invalid....no wonder we pay such high rego its because of idiots like this who just do whatever they want with no regard for the law.....its a law for a reason mate

this is true, but to be fair to him, the person who sold him the engine told him it was a vx motor (he wouldnt have had a clue what he was looking at) he has f all cash so has to make do with what he has now till he can rebuild his original motor which he plans to do.

[eXcon]

How did this work out?
Ive got stuck similar issue!!
Put vt motor into vy.
Splutters - badly - cracks and whinges
Runs fine with vt chip but cuts out after a few secs!
Runs sloppy with vy chip
Only thing i havent switched to vt motor from vy motor is injectors...
Hmmmm
Any help? Thanks