engine dilemma

[frankjetta 0]

Hi, my '94 2.0 16v has just failed the m.o.t. on emissions. Taking into account it has done 143,000 miles

 

do I look for a similar engine, get it rebuilt or replace it with a different engine? I am not bothered about how

fast it goes but need reliability and cheap to fix (not true of the 16v). Can a 1.8 8v out of a scirroco be made to work?

The problem is I have a max budget for engine work of £1000. I really want to keep driving the corrado because the

rest of it isn't to bad but it might be to much for me. Any ideas for a cheap fix would be great. Car is now off road until I can sort it.

[dannyboy 0]

143 K is roughly the time these engines start to loosen up. My old gti had 256k and it still ran smoothly. Could u just find out why it failed? May not be the engine,might b the injection system or ignition system.how far was the emissions off?

[seanl82 23]

As above, or the cat itself. If you replaced the engine though, would you do it yourself? I'd steer well clear of an engine from a prehistoric rocco though! Best option imo would be an abf from a mk3 golf 16v. Can easily be had for £150 nowadays. Factor in fluids and filters, new clutch, all gaskets and anything else you fancy and your still gonna have change from £500. Nice smooth reliable engine, and a small bump in power to boot!

[dr_mat 0]

"Failed on emmissions" .. in what way? CO level? Or lambda?

If it's CO level you need a new CAT, if it's lambda then you have a simple fuelling issue.

[frankjetta 0]

Thanks guys, the readings are:-fast idle CO 0.81, HC 246 and lambda 1.05

second fast idle CO 0.84, HC 283 and lambda 1.05

natural idle test CO 0.85.

I think I have a cracked exhaust manifold which may be causing the lambda to read wrong and overfuel

but this is only a theory, tried to seal cracks for a temporary test but no difference.Still to try,leaky injectors,cat,air filter,all mentioned as possibles. At the end of the day it still smokes a bit although the mot bloke said this isn't causing the failure.

How easy is the swap to an ABF engine? I could manage a nut and bolt swap over time.

 

---------- Post added at 4:33 PM ---------- Previous post was at 4:32 PM ----------

 

Thanks guys, the readings are:-fast idle CO 0.81, HC 246 and lambda 1.05

second fast idle CO 0.84, HC 283 and lambda 1.05

natural idle test CO 0.85.

I think I have a cracked exhaust manifold which may be causing the lambda to read wrong and overfuel

but this is only a theory, tried to seal cracks for a temporary test but no difference.Still to try,leaky injectors,cat,air filter,all mentioned as possibles. At the end of the day it still smokes a bit although the mot bloke said this isn't causing the failure.

How easy is the swap to an ABF engine? I could manage a nut and bolt swap over time.

 

---------- Post added at 4:34 PM ---------- Previous post was at 4:33 PM ----------

 

Thanks guys, the readings are:-fast idle CO 0.81, HC 246 and lambda 1.05

second fast idle CO 0.84, HC 283 and lambda 1.05

natural idle test CO 0.85.

I think I have a cracked exhaust manifold which may be causing the lambda to read wrong and overfuel

but this is only a theory, tried to seal cracks for a temporary test but no difference.Still to try,leaky injectors,cat,air filter,all mentioned as possibles. At the end of the day it still smokes a bit although the mot bloke said this isn't causing the failure.

How easy is the swap to an ABF engine? I could manage a nut and bolt swap over time.

 

---------- Post added at 4:35 PM ---------- Previous post was at 4:34 PM ----------

 

Thanks guys, the readings are:-fast idle CO 0.81, HC 246 and lambda 1.05

second fast idle CO 0.84, HC 283 and lambda 1.05

natural idle test CO 0.85.

I think I have a cracked exhaust manifold which may be causing the lambda to read wrong and overfuel

but this is only a theory, tried to seal cracks for a temporary test but no difference.Still to try,leaky injectors,cat,air filter,all mentioned as possibles. At the end of the day it still smokes a bit although the mot bloke said this isn't causing the failure.

How easy is the swap to an ABF engine? I could manage a nut and bolt swap over time.

 

---------- Post added at 4:35 PM ---------- Previous post was at 4:35 PM ----------

 

Thanks guys, the readings are:-fast idle CO 0.81, HC 246 and lambda 1.05

second fast idle CO 0.84, HC 283 and lambda 1.05

natural idle test CO 0.85.

I think I have a cracked exhaust manifold which may be causing the lambda to read wrong and overfuel

but this is only a theory, tried to seal cracks for a temporary test but no difference.Still to try,leaky injectors,cat,air filter,all mentioned as possibles. At the end of the day it still smokes a bit although the mot bloke said this isn't causing the failure.

How easy is the swap to an ABF engine? I could manage a nut and bolt swap over time.