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How Do You Tell If You Have A Stock Ecu Or A Chipped One?

DREW32

By DREW32,
in Engines & Forced Induction

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DREW32 Enthusiast

DREW32

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Morning everyone was just reading a few threads and one was stating that you cant tune a stock ECU so it got me thinking how do you actually tell if its been upgraded? My car when i bought had a new high rise ss manifold and turbo etc ive since done a fair bit of modifying or adding stuff to the motor like most of us do and never had a major problem with the car running its never been on a dyno it reves to about 7500 -8000 im pretty sure as i gave it a bootfull one night but couldnt keep my eye on the tacho due to the speed i was pulling LOL so haw can you tell if its been upgraded? PS ive done all my own work myself because im in the bush and most people around hear would charge an arm and a leg just to pop the bonnet

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DREW32 Enthusiast

DREW32

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the only way to tell if it has been remapped for sure is to open it up. then take a pic and post it on here.

ok i could do that ,being a first time owner ,where is it located ? how hard to get to it ?and is it hard to open?

DREW32 Enthusiast

DREW32

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your game without dynoing it lol

well thats the whole idea if i can see if its been upgraded then ill do the 150km trip to the nearest dyno and get a proper tune etc hopefully LOL

mad082 Grand Master

mad082

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ok i could do that ,being a first time owner ,where is it located ? how hard to get to it ?and is it hard to open?

ok, well it is located in the kick panel (left hand side) on the passenger side. it is pretty easy to remove it, then to open it is just a few screws. it may even have a sticker on it saying the name of a tuning company.

DREW32 Enthusiast

DREW32

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ok, well it is located in the kick panel (left hand side) on the passenger side. it is pretty easy to remove it, then to open it is just a few screws. it may even have a sticker on it saying the name of a tuning company.

ive taken it off and opened it up no stickers dont know what to look for pictures arent the best so ?

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tridentt150v Grand Master

tridentt150v

Posted
Posted

Some chips don't have anything written on them, mine didn't, but I could do over 8,000 and 180. I ended up with a power fc anyway, better running lots more power and heaps better fuel economy, its a win/win thing.

mad082 Grand Master

mad082

Posted
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Some chips don't have anything written on them, mine didn't, but I could do over 8,000 and 180. I ended up with a power fc anyway, better running lots more power and heaps better fuel economy, its a win/win thing.

but i'm gathering by you avatar that you have a r33. this guy has a r32, and the ecu's on them can be remapped much easier.

Al Grand Master

Al

Posted
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aside from the sticker if its chipped there should be a "daughter" board gluegunned to the motherboard...

Not on a 32..........

That small board (on the RHS of the ecu) need to be gently unscrewed and moved aside, then take another pic of the bottom board.

Kinks Grand Master

Kinks

Posted
Posted

raised rev cut is a dead giveaway

when they leave the factory nissan put a warranty sticker over the wiring harness that plugs into the ECU, so you can tell pretty quickly if the ECU has even been unplugged before. A missing sticker doesn't necessarily mean it's been chipped but it's one of the signs..

MerlinTheHapyPig Mentor

MerlinTheHapyPig

Posted
Posted
Not on a 32..........

That small board (on the RHS of the ecu) need to be gently unscrewed and moved aside, then take another pic of the bottom board.

^ what he said.

Not all rechips have their revlimiter raised. R32 rev limit is 7,500/7,800, my car has a stock ecu and i usually can rev to 8,000rpm without limiter appearing to kick in, so it's sometimes hard to tell

speed limiter is always removed. So see if you can go faster than 180 (on a private road of course...)

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