rich09

hi,
i have a 93 wrx and i fitted a boost gauge to it and it was boosting at .8bar (which i think is about right?)
i then fitted a chip that i bought from someone on here which should take it to 1.15bar, i then fitted a full decat system yesterday but its still only boosting at .8-.9bar.

what are the things to check as something is working correctly?
i have checked/cleaned the boost solenoid
cleaned the boost pipes from the solenoid (not checked for cracks/splits tho)
i dont know how to check/clean the maf nor do i the coil packs, i dont even know where/what they are!

what should i be doing?

thanks

ScoobySteve1979

iTrader: (1)

Map sensor ??

morandpeter

iTrader: (5)

errr sounds to me like the chip doesnt do anything. fitting a decat doesnt increase boost.

Go back to basics,

you say you fitted a chip which "should" have taken you to 1.1 bar but hasnt.
what is the make of chip? have you fitted it right? have you reset ecu?

it's easy to get a thought and run with it if you know what i mean.

rich09

the chip was bought from a lad on here! the chips have had very positive feedback from a lot of people on here!
i have fitted it the way on the instructions, so i dont think it is the chip!
i have not reset the ecu, how do i do that?? was i supposed to? lol

morandpeter

iTrader: (5)

check ou this link for reseting ecu and also have a lok a reading fault codes as well if you dont think it is the chip.

http://www.scoobypedia.co.uk/index.p...ledge/ECUReset

did the car ever boost to 1.1 bar after you fitted the chip? or has it stayed at standard 0.8?

hhmmmmmm

rich09

nope never changed except if i give it the beans in all gears, i can get it to .9bar.
i will try the ecu reset in abit and let you know!
thanks

turboaddict

iTrader: (2)

RIGHT two ways you can reset your ecu, 1st way disconnect the battery for a few hours- 2nd get ya head in the drivers foot well look up behind the steering column and you should see two GREEN connectors (plugs) and two black connectors, (make sure car is at running temp first)plug green too green and black too black with the engine off, hold throttle pedal to the floor then hold it half way for 2 secs, release then start her up (engine management light will flash steady)go for a drive for 5 mins keeping revs above 2000rpm, then pull over (in a safe place)kill the engine then disconnect the two green plugs and the two black plugs..........ecu resetjob done

rich09

ok, i reset the ecu earlier and its done something but dont know what,
it will now boost upto 1bar at a push.
so obviously the problem still lives! whats next?
thanks

my94wrx

iTrader: (4)

speak to the person you bought it from?

rich09

car or chip??

steviecrump

Did you cut J1???

rich09

yes i did! although it wasnt a vertical brown wire, it was just silver..

my94wrx

iTrader: (4)

chip.

morandpeter

iTrader: (5)

definately sounds like te chip is doing nothing. You will know when your boosting 1.1bar as it will come in quite early (compared to thrashing it to 0.9) and pull like a train.

I gather when accelerating it boosts to 0.8 easily? if so go see the chip seller. there could be a dozen reasons why it doesnt work. (not compatible with your ecu, its a dud, does it work with your turbo? etc)

rich09

Yes, it gets to .8bar easily and then struggles to get anymore! I will try and get a replacement chip to see if it is the chip at fault! The seller has been very good lately with helping me find the problem but as you say, itay just be a faulty chip!!

rich09

any more ideas? its not the chip as i unplugged the chip and the car did not start!
the boost solenoid works as i have tested it so what else is there?

my94wrx

iTrader: (4)

the car did not start because you failed to reconnect the "j1" link, you need connect the j1 link and see how it behaves then, there is no need to remove the chip when reconnecting the j1 link as it will override it

rich09

but i do not want to run the old map??
i just cant get my head around why it will not boost properly!

thanks

my94wrx

iTrader: (4)

i know that but when you unplug the chip you cant expect it to run when the link is not connected, you need to connect the j1 link to see what the boost is doing, and you need to speak to the supplier of the chip to see what they say.

rich09

When it was on the original map, it was still boosting the same! What are the other parts to check??

Glowplug

iTrader: (8)

It's easier to help if you keep it all in one thread. So here is the link to your other one https://www.scoobynet.com/scoobynet-...ml#post9629972