Problem with rb25det....please help

[Husky33]

Alright about 2 hours ago i was drivin down the highway..everything was fine as usual. Then as i wnet to rev it a bit it got to about 3grand then just wouldn't go anymore. The engine sort of shuddered, and the car shook but i couldn't rev it past 3grand in any gear. Then as i decided to drive home it got worse...couldn't rev it past 2 grand. Then as i stopped at the lights the car stalled..started her up again and unless i give it some gas it would just stall. Got home...looked for air leaks etc..nothing i could find. Started her up again...everyithing was fine, perfect.

Took it out for a bit of a drivve and after 10-15 minutes it started doin the same thing...would let me rev that much..the engine shuddering all the time i put my foot on the gas slightly. Then when i go to stop or slow down it just stalls.

Anyone know anything that could be the cause of this.

IF this helps my car is running very rich atm...like i get 260 to a tank. My mods a full 3" zorst and airfilter runnin stock boost

ThnX

[PTR33]

sounds like "limp home mode" to me

[Husky33]

which is what exactly?

[MarkR33]

limp home mode is in autos only i believe , thats where it goes into shit mode becuase somethings ****ed , so after a certain time like 10 mins it is starting to happen hmm , well if its not happening until the engine warms up , then maybe there is ur problem somewere , check fuel pump . filter , thats all i can think of

[Trust33]

Have u been playing arround under ur bonnet.Have a look to see if your air flow meter has any loose connectors or worn n shagged cables.A dodgey signal to the comuter could be it.

[Trust33]

Have u been playing arround under ur bonnet.Have a look to see if your air flow meter has any loose connectors or worn n shagged cables.A dodgey signal to the computer could be it.

[paulr33]

limp home mode:

the ecu thinks there is something wrong, such as sensors failing and therefore assumes stuff is bad and wont rev past 2500 rpm (ish) its in both auto and manual, the most common cause of limp home mode is dead or faulty air flow meter, the ecu doesnt know how much air is coming therefore it assumes its only a little to prevent running dangerous lean mixtures etc..

check all piping, intercooler, plenum, throttle body, etc for leaks

[Trust33]

Have u been playing arround under ur bonnet.Have a look to see if your air flow meter has any loose connectors or worn n shagged cables.A dodgey signal to the computer could be it.

Also check your that you are getting proper spark.It could be that your coil if shafted.injector cables and connectors wouldnt hurt either.

[Trust33]

Have u been playing arround under ur bonnet.Have a look to see if your air flow meter has any loose connectors or worn n shagged cables.A dodgey signal to the computer could be it.

Also check your that you are getting proper spark.It could be that your coil or leads are shafted.injector cables and connectors wouldnt hurt either.

[Husky33]

hey guys

just lettin u know today i got my hands on another series2 afm that had done low kays. Put it in my car not long agoand i tell ya what it is the best 100bucks i have spent...well so far. Problem is gone, engine feels sooo much better than it did even before the problem. Hopefully it will solve some of my running rich issues..

Will keep ya updated if something goes wrong.. thanx for ur help

Simon