evo 5 help needed

[dip]

hi new engine installed starts up ok and idles fine but when warmed up it starts to over fuel spluters and cuts out also notticed rev counter jumping up eraticaly. car will not start again untill it cools down again then the same fault happens again

[stu8]

was the engine a standard engine out of a 5? Why did you change the engine? What makes you think it is overfueling? any mods?

Stu

[dip]

its newly built forged engine. Reason i think its over fueling is because once the plugs are removed excess fuel can be seen in the bores.

Mods are - S90 throttle body, gsc s1 cams, 750 injectors, autobann intercooler with pipes.

Dip

[stu8]

Originally Posted by dip

its newly built forged engine. Reason i think its over fueling is because once the plugs are removed excess fuel can be seen in the bores.

Mods are - S90 throttle body, gsc s1 cams, 750 injectors, autobann intercooler with pipes.

Dip

has it been mapped, what ecu is on it? is that ecu mapped for those injectors?

Stu

[dip]

My ecu was a stage 1 modded with ecutek, but for my previous engine. No mapping has been done yet as i am trying to run the engine in.

[stu8]

Originally Posted by dip

My ecu was a stage 1 modded with ecutek, but for my previous engine. No mapping has been done yet as i am trying to run the engine in.

well, for starters, you should be using the injectors the ecu was mapped for, in my limited knowledge, 750's instead of standard 560's will be overfueling massively

Stu

[stu8]

what else has been fitted after the ecutek?

Stu

[dip]

Thanks for the info Stu will try to source some 560's as my old engine was sold with them.

Dip

[dip]

After the ecutek was mapped with stage 1 mods, my new setup now has new internals e.g. piston/rods/lash adjusters, has s90 throttle, 750 injectors, bigger intercooler with pipes, and the gcs s1 cams.

[stu8]

Originally Posted by dip

After the ecutek was mapped with stage 1 mods, my new setup now has new internals e.g. piston/rods/lash adjusters, has s90 throttle, 750 injectors, bigger intercooler with pipes, and the gcs s1 cams.
Dip

might be easier to get a basic map put on it to run it in

I'd be more tempted to do this, then remap properly once run in, as it is a completely different engine, with different spec to what the ecu was set up for

Stu

[dip]

Have been talking with lee5 as i am getting it mapped by him, will talk to him and ask if he can put a basic map to run it in.

Dip

[stu8]

o yer, dont continue trying to run it until you have sorted the injectors, or the remap

Stu

[stu8]

Originally Posted by dip

Have been talking with lee5 as i am getting it mapped by him, will talk to him and ask if he can put a basic map to run it in.

Dip

[dip]

hi stu purchased 560 injecters and installed still having same problem of engine over fuelling after 20 min. also tried cam sensor as my rev gauge becomes more eratic just before fault occurs and still same problem. any help appreciated . thanks

[sbn1979]

whats your wideband saying?