New toy WILL play :-D

[Mobilemick]

got pin out for the light relay

[grinder]

good man - just incase

i reckon i have printed over 200 sheets out with all sorts of stuff on it

im off work tomorrow ( fri ) so might try and get the ECU out the coupe and try that

Stu

[grinder]

not the cheapest thing :

http://cgi.ebay.co.uk/MAZDA-RX-7-FC3S-ECU-JDM_W0QQitemZ320039449468QQihZ011QQcategoryZ36631QQrdZ1QQcmdZViewItem

[shaunwil]

postage 21quid, blimey are they delivering it on horseback

Hope you get it going, did you need any plugs still ??

Shaun

[shaunwil]

oops its in japan :spank

Shaun

[Prof]

not the cheapest thing :
 
http://cgi.ebay.co.uk/MAZDA-RX-7-FC3S-ECU-JDM_W0QQitemZ320039449468QQihZ011QQcategoryZ36631QQrdZ1QQcmdZViewItem

Just don\'t say the place name out loud - could not have been made up better if you tried ! :Giggle :Giggle

[Mobilemick]

u aint buying it are u stu ??

[grinder]

im not buying it no - not at that price

esp when we dont know if it will fix the problem !!

[Prof]

Stu - which ECU\'s have you tried in the car, since I sent the N374 one back ?

It might be useful to know what tests you have made with what ECU - maybe draw up a table, and repeat the same set of tests on the 3 ECU\'s you have access to:

Original N374 with Knightsports chip
N380 with Knightsports chip
ECU from your coupe

Would also be useful if you could unplug the connector from a primary and secondary injector and stick a bulb on it - then we can see if the injectors really are being pulsed.

[grinder]

hiya chaps

i havent tried any ecu yet apart from the N380 with the chip

i need to get the one out the coupe and try that

problems are

1 - i feel like death warmed up
2 - its throwing it down up here
3 - i think that covers me !! LOL

but so far we have

1 - orig ecu - clicking
2 - n380 with copied chip - clicking

so i need to get the one out the coupe and try that , aswell as the n374 that you fixed - this will narrow it down even more

i have found a stock n374 ecu - but its in aus - just waiting for a shipping quote

i would love to check the injectors - but they really dont look easy to get to !! LOL

Stu

[Prof]

i would love to check the injectors - but they really dont look easy to get to !! LOL

Stu

Yep - was thinking about that - they are under the UIM - which means taking off the interwarmer and the UIM - plus all the wee pipes around there that won\'t move freely.

Another approach might be this:

Get a needle or some long thin metalic probe - and slide this into the back of the plug going into the ECU on each of the 4 injector outputs :

3W - Front Primary
3X - Front Secondary
3Y - Rear Primary
3Z - Rear Secondary

These are the last 4 contacts on the left connector :

+----+----+--
| 3Y  | 3W |
+----+----+--
| 3Z  | 3X  |
+----+----+--

connect a 12V led between the probe and a +12v supply.  Led on - injector is firing.

this should tell you a bit more

[grinder]

im assume i can check this with a meter aswell

[Mobilemick]

yeah u can stu,  red lead 12 volts,  black lead to pin coming out of ECU  

but it might not be quick enough using a digital one.
Mick

[Brett]

Do I need to get my spanners out Stu?  Heading up to Wolves at 5am tomorrow, so give me a txt around 10am and I may be in a position to come over

[grinder]

Mick - i was thinking that to be honest

Brett - i have no probs with you coming - but not sure what we would beable to achieve - unless you want to come and point and laugh ??

Stu