brunny42

does any one know if they can be chipped, ie i mean actually replace the ecu chip, because a lot of tuning chip companies actuall fit a fuel cut defender with bleed valve for turbo boost control, and as we all know if you cheat the map sensor reading to the ecu by reducing sensor voltage this causes the engine to run dangerously lean and lead to detonation, so i was just wondering if all tuning companies are doing this when they claim they are chipping them.

dj219957

simply -

yes you can use piggyback chips which will contain a new map.
or indeed they are a number of total replacement ecus available.

Andy

ALi-B

iTrader: (1)

depends what year...

Early Classic (92-96) - Chip swap (scooby ECU etc)
Facelift (97-98) Needs piggy-back Eprom...no bleed valve though
99 onwards - plug and play remap.

The only ones that I've heard of that use Bleed valves are "superchips"

brunny42

yes thats the ones i was referring to, so people are getting ripped off then as fuel cut defenders can be bought for around 65 quid and boost bleed valve 40 quid, god what a mark up i heard of people paying over 500 quid for this , only takes one hour to do aswell

brunny42

and then a few more hours and pound notes to put back together the blown engine due to lean running???

BarryL

when you say 92-96-chip swop (scooby ECU etc)
do you mean swop the ecu or swop the internal chip

ALi-B

iTrader: (1)

It's an internal ROM (or EPROM) chip...technically, it's an addition not a swap, the socket is already there (well, not on all of them though) and you just cut a jumper to select which map you want to run (the one in the new chip or the standard one).

The remaps, be it ROM/EPROM chip, piggy back, or a software upload increases the fueling and adapts ignition timing to prevent lean running and counteract detonation from the extra boost.

dj219957

there are complete ecu replacements availavable for the early classics too.