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Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: gonzoninja on July 17, 2005, 05:25:37 PM

Title: Do I need a new ECU?
Post by: gonzoninja on July 17, 2005, 05:25:37 PM
My FD3S has managed to limp through its MOT this year and apparently needs a new CAT and Exhaust. The exhaust was a Jasmo thing fitted before I got it.

I was thinking of getting a Knight Sports performance CAT and possibly a Blitz Nur Spec cat back exhaust. The car already has an Apexi Induction kit (again fitted before I got it), and reading the forums here it looks like I will need to improve the fueling, therefore should I get a new ECU or can I get away with something like a fuel cut defencer or something? I\'m not really planning on tuning the car anymore after this as I\'ve just shelled out £3000 on an engine rebuild.
Title: Do I need a new ECU?
Post by: asp on July 18, 2005, 06:27:27 PM
it would be a good idea to get an apexi,u say u aint goin to do any more mods,but u probly will,jus so\'s u dont go lean id say get 1,
Title: Do I need a new ECU?
Post by: sdminus on July 18, 2005, 06:30:16 PM
If you got a power fc for example it can be used to help find probs later on if you have any as well as let you monitor most of the vitals

Scott
Title: Do I need a new ECU?
Post by: Steve Burnett on July 18, 2005, 07:32:54 PM
If your fitting a performace CAT and back box along with an induction kit then you will be safer getting an Apexi ECU. This is a good modification and as said by Scott it can help find faults quicker and is good at monitoring various stuff. It not too cheap though, buying one and tuning will cost approx. £700-900.
Title: Do I need a new ECU?
Post by: gonzoninja on July 18, 2005, 08:34:15 PM
Well luckily, I had a word with my peeps (RX Heaven) and they said that the CAT was actually good, and only the exhaust needed to be changed. So I\'m doing that, then I guess I\'m going to have to sell my girlfriend into white-slavery  to pay for the Apexi power fc.

Thanks for your help
Title: Do I need a new ECU?
Post by: scud on July 18, 2005, 09:55:56 PM
There\'s a knight sports ecu on e-bay, i think they want 100 notes for it
Title: Do I need a new ECU?
Post by: asp on July 19, 2005, 04:38:15 PM
the knight sports ecu is probly on ebay cos the owner has jus bought a pfc,
save up 4 the pfc ;)
Title: Do I need a new ECU?
Post by: gonzoninja on July 20, 2005, 07:26:33 AM
Isn\'t the Knight Sports ECU just a Chipped normal ECU whereas the Apexi is a completely new ECU?
Title: Do I need a new ECU?
Post by: clive on July 20, 2005, 08:39:03 AM
Quote from: gonzoninjaIsn\'t the Knight Sports ECU just a Chipped normal ECU whereas the Apexi is a completely new ECU?


Yes your right.
Title: Do I need a new ECU?
Post by: davefrith on July 20, 2005, 08:39:27 AM
PFC is easiest to map in this country and yes is a stand alone ECU

Most piggy back ecu\'s are sold when the owner does the safe thing and buys a Apexi, check with who ever did your rebuild to see if they allow exhaust changes etc

(Jasma isn\'t a make of exhaust but a jap standard)
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