I want to check my timing as i think the car is over fueling due to a strong smell of fuel from the exhaust, the car is a JDM TT Auto, been looking for a right up on how to do this on the Z but cant find one, i'm used to working on older cars and am not sure if there is anything different about the Z, any help much appreciated, Dave.

More likeley a lazy 02 sensor id reckon, is it bad cold but ok warmed up?

 

Sometimes zeds smell a bit fuelish on cold days due to 1 or 2 loose clips on the feul lines under the bonnet, have you checked all of these?

More likeley a lazy 02 sensor id reckon, is it bad cold but ok warmed up?

 

Sometimes zeds smell a bit fuelish on cold days due to 1 or 2 loose clips on the feul lines under the bonnet, have you checked all of these?

 

Have checked all the fuel lines, not to say one isn't perished and i am not noticing it. I'll maybe check the ecu diagnostic to see if anything shows up there, cheers for the comments.

Have checked all the fuel lines, not to say one isn't perished and i am not noticing it. I'll maybe check the ecu diagnostic to see if anything shows up there, cheers for the comments.

 

idealy you needa proper conzult to see the o2 sesors running from lean to rich,moneys on o2 sensors

 

check timing

 

you need a timing gun wait until car is up to full operating temp

 

connect timing gun up

face timing gun down on to crank pulley and there are marks from 10-20-30 etc you should see the mark on the crank in relation to the timing mark number on the plate above crank pulley,if you have a poor idle or the idle sits to high you wont get a clear reading but id check the o2 sensors first sounds more likely TBH

idealy you needa proper conzult to see the o2 sesors running from lean to rich,moneys on o2 sensors

 

check timing

 

you need a timing gun wait until car is up to full operating temp

 

connect timing gun up

face timing gun down on to crank pulley and there are marks from 10-20-30 etc you should see the mark on the crank in relation to the timing mark number on the plate above crank pulley,if you have a poor idle or the idle sits to high you wont get a clear reading but id check the o2 sensors first sounds more likely TBH

 

Blimey Greg and I agree on something for once!!!!! :rofl: :rofl: :rofl:

idealy you needa proper conzult to see the o2 sesors running from lean to rich,moneys on o2 sensors

 

check timing

 

you need a timing gun wait until car is up to full operating temp

 

connect timing gun up

face timing gun down on to crank pulley and there are marks from 10-20-30 etc you should see the mark on the crank in relation to the timing mark number on the plate above crank pulley,if you have a poor idle or the idle sits to high you wont get a clear reading but id check the o2 sensors first sounds more likely TBH

 

Thanks greg, nothing mystical with doing the timing then :hyper: i'll give that a go as i dont know of anyone up this way with a conzult, one more question, is the JDM timing the same as GB? Thanks

Blimey Greg and I agree on something for once!!!!! :rofl: :rofl: :rofl:

 

 

ehh never been a problem! im to contraversal sometimes keeps my heart pumping :D

Sorry to Hi-Jack thread but where are these o2 sensors and are they easy to replace on a 92 N/A and how much are they??

after the turbos on the exhaust.

after the turbos on the exhaust.

 

Cheers mate but.....

 

Sorry to Hi-Jack thread but where are these o2 sensors and are they easy to replace on a 92 N/A and how much are they??

 

LOL :rofl: :rofl: :rofl: The thought was there though :bow:

If you want to check your timing you need to:

 

Get car to temperature

Switch off A/C, lights, etc. (i.e. keep it on base load tick-over)

Attach a timing strobe - importantly if this is an induction based strobe, there is a loop of wire on the PTU that can be used BUT you need to make sure the induction sensor on the strobe is OPEN - otherwise you may get the wrong timing reading (don't ask me why with the loop closed I get an extra 10° - if I time to the closed signal my effective timing is 5° and I loose mucho powero).

Best bet is to take no. 1 coil pack out and attach a conventional spark lead between it and the plug, then use the strobe on the lead.

Point the stobe down to the crank (careful not to catch the cooling fan!) and read the timing from the crank pully.

 

If you need to adjust (normal operation is 15°) there are 3 10mm bolts on the CAS that need to be loosened (do this with the engine off!!!). The CAS can then be rotated (slightly!) to change the timing to the right value (with the engine running again). Once correct, shut the engine off and retighten the CAS bolts. The all done.

 

HTH

 

StuartR

Thanks Stuart R, nice right up.