djc1

if in limp mode would it make the engine sound quieter than normal ?ie not the usual burble ?
also how much does it slow the car down ?

Splitpin

It won't fundamentally change the exhaust note, no.

Depends which model you're talking about for specifics, but in general you would be seeing boost limited to actuator pressure, and a reduced rev limit in the 3-4000rpm area. You would also be seeing the check engine light, so should be in no doubt that something is wrong.

djc1

the car revs up no problems ,but ive been told that it is in limp mode as there are 3 code faults .the light hasnt come on but suspect its either faulty or someones interfered with it to make the light go out before i bought it ,

the car seems sluggish to me but im quite shocked that its been in limp mode and i didnt realise
it was only the fact that the engine check light wasnt lighting up with ignition that made me look into it

djc1

01 wrx bugeye btw mate

nick172sport

iTrader: (6)

have you had the codes read by a codereader

djc1

yes 3 fault codes have come up ,3 sensors .but there was no engine check light

nick172sport

iTrader: (6)

which sensors have come up bugeyes suffer from tempremental sensors i had camsensor fault come on on mine unplugged lead to it wiped it over reset ecu sorted not had a issue since touch wood

djc1

i think he said cam sensor ,maf sensor another 1 cant remember ,he said the last two would probably just need cleaning up as you say .

still need to find out why no engine check light though ??

nick172sport

iTrader: (6)

check bulb wiring as a member on here bought one and it had been tampered with otherwise try another set off clocks see if it comes on with a different set in where abouts are you btw

djc1

when you say bulb wiring do you mean the wires which plug into clocks ?
im in the north east mate

nick172sport

iTrader: (6)

pull clocks out check plugs and wiring piece off pish to do

djc1

i did this morning mate ,checked to see if it was a bulb but discovered no bulb .no sign of anything alse wrong really

nick172sport

iTrader: (6)

is it not lighting up at all should show yellow for a few seconds when turning ignition on

djc1

nothing at all ,no engine check light ,no yellow management light ?

Splitpin

If I read that correctly, you're saying that there is no bulb/LED in the check engine light position? If so, it's always a concern to see the check engine light bulb has been removed, as this implies that a previous owner knew something was wrong but preferred to ignore the warning than fix the problem.

You cannot "clean" a MAF sensor, suggestions to the contrary are based more on hope than any genuine understanding of how this system works. Don't forget there's a very effective air filter in front of it to make sure it never gets dirty in the first place. If it's degraded badly enough to cause an error, you need to fit a new one - no messing.

It's worth doing as Nick suggests and checking connector contacts for corrosion/moisture - but if you find any, that suggests, at least, that the waterproof seals in the plugs are compromised and in need of replacement. The bottom line is that either of the two errors you have identified (MAF or crank position sensor) will be enough to put the engine into limp mode. If the code reader has identified three separate trouble codes, you clearly need to correct all of them.

djc1

sorry forgot to reply .have a few threads on the go ha ha

yeah ive had the clocks out and there isnt actually a bulb for the check engine light ,it must be an led on the otherside of the circuit board ,i can see where it is on the back of the circuit board as its stamped on in writing .

maybe my clocks are just faulty ,but id like to get to the bottom of it

Midlife......

iTrader: (2)

Looks like you need some hands on work to get to the cause of the problem......

the DENSO ECU in your bugeye is an absulute marvel of electronics It runs my bugeye at 400 odd BHP

I see you have posted that you are in the North East.....there's Alyn at AS Performance and Harvey near Darlington.....have you joined the TTS crew (Tyne Tees Scoobies) ?

Shaun

djc1

i havent mate no ,but i will take a look ,thanks

Midlife......

iTrader: (2)

http://www.tyneteesscoobies.co.uk/forums/index.php

http://www.tyneteesscoobies.co.uk/fo...splay.php?f=64

http://www.tyneteesscoobies.co.uk/fo...splay.php?f=63

http://www.tyneteesscoobies.co.uk/fo...splay.php?f=71

.


I ran out of cut and paste LOL

Shaun