Running 20 Degrees Timming

[nisn]

didnt get a chance today,mate has my timing light'

but could anyone tell me what these ecu's are please'---

p6

23710 21u13

mec-r533 a1 4803

other is>

mec-r630 a2 car was bought with first one in it, now runing second 1 as told was maped for higher boost and boost cut taken off so on,but i dout it,,they both run the same., never use to cut out,

[KiwiRS4T]

Haven't got exact matches poss need FAST but nearest I have is

23710 21 U11 mec 531 A1 which are for R33GTST RB25DET series 1

the other one could be for a series 2

[JonnoHR31]

also you need to turn the cas the other way. anti clockwise (left as you said) is advanced, not retarded, so it probably is running 20 degrees timing.

[nisn]

when i took the mec-R533 a1. it didnt look like it has ever been out of the car- so basicly nethier are for series 1? wtf

[nisn]

ignition on 20. carnt get it too 15.

[DVS JEZ]

The consult timing cant be changed

U need to set the engine timing with a timing light to match the consult.

[nisn]

ok will do. but what if consult reads 20 even if i move cas. should it drop to 15

[DVS JEZ]

The consult data shouldn't move, this is the ecu tuned idle timing,

because the timing in the ecu can't be adjusted you need to set the engine timing to exactly what the ecu timing shows.

the reason for this is the engine has been tuned from factory with the engine timing at 20 (at idle)

so as the rpm increases and load increases the ecu reads off its factory tuned map.

but if the timing is not set to the factory engine timing then the motor ecu will be running too much or too little timing depending which way the timing is set (advanced or retarded).

-if its retarded then the engine performance will be low

-if its advanced there is a chance the engine may ping or detonate causing engine failure.

[Deano45]

Hopefully this should explain it for you

[JonnoHR31]

ok, follow these steps

1. unbolt number 1 coilpack from its cradle but leave it plugged in to the loom

2. get an old spark plug lead and put it between the coilpack and the spark plug, you may need to shove something conductive in the end of the coilpack to bridge the gap between the spring and the lead

3. hook the timing light onto the spark plug lead

4. start the car and make sure your getting spark to cyl 1 (timing light should flash)

5. plug your consult thingy in and see what timing its displaying (in that pic its 20)

6. adjust the cas until the timing on the crank is the same as the timing displayed in consult, if its 20 then you want to line it up with the 3rd mark from the right on the balancer. turning the cas clockwise retards timing and anticlockwise advances it

[nisn]

thanks guys, but i know all this stuff , just wondering why it sits on 20degrees at idle timing,dvs32r u say its factory? i just thought it should read 15.as i plug into sr20 and it reads 15. i can change to -15 but carnt burn to ecu,as its stock ecu. change in test mode and motor sounds like it should.

[DVS JEZ]

When i say factory i mean whatever the idle timing was tuned too. This cannot be changed. The ecu has no way to know what the Base engine timing is.

[nisn]

will get my light back today- and will sus it out

[nisn]

sorry for delay--- the guy has moved,n took my light. borrowd a mates,but it dont work,lol ill get there..