Hmmm tried it again today
Seemed alright too start with. Then when warmed
Up the autometer tach was racing 500rpm itermittantly
And got worse was randomly going to 5k
When engine was idling. Even sometimes saying 0rpm and
When turned lights on was working again.

So changed the resistor value to 4.7k seems ok
Now and also the tech edge rpm readout is working
Too now with the 4.7k resistor. Finally after lots of messing around.

_________________
*81 GH Sigma*
*85 GK GSR Sigma - 2.6L, 4G54, 71.6rwkw, NA pig, TR magna EFI conversion and computer, lumpy crow cam*
*85 AB GSR Cordia - 2.0L, Gen 1 DOHC 4G63, 116.33 fwkw, 13psi ,Stocker TD05H 14B Turbo, Stocker computer, needs work to slow*

Driving a Cordia is not a Crime

Damn today was warm so only played with
Car just now.

The tech edge LA1 digital display also has
An optional 5v input for a sensor.
So connected the tps but might put switch
In to switch between sensors, air temp, air pressure maybe coolant temp(prob good one to check as dunno car seems to run warm)
Displays it as a percentage so closed throttle is bout 10% .5v of the 5v

Just good to have all 4 screens of this digi gauge
Reading something now

Thanks

_________________
*81 GH Sigma*
*85 GK GSR Sigma - 2.6L, 4G54, 71.6rwkw, NA pig, TR magna EFI conversion and computer, lumpy crow cam*
*85 AB GSR Cordia - 2.0L, Gen 1 DOHC 4G63, 116.33 fwkw, 13psi ,Stocker TD05H 14B Turbo, Stocker computer, needs work to slow*

Driving a Cordia is not a Crime

Took the cord for a drive the tacho
Still dances especially when de accelarating
Down hill. Maybe need to try another resistor
Value.

Also something been bothering me for awhile
If u rev car in neutral has a mass flat spot
At 4500rpm. Like its leaning out but mixtures fine
Underload feel fine.

I have changed the plug leads and oil
As it doesn't get driven much.

It was like this before the tune so not tune
Related.

Could a shit plug do this.
Or maybe something more sinister?

Thanks

_________________
*81 GH Sigma*
*85 GK GSR Sigma - 2.6L, 4G54, 71.6rwkw, NA pig, TR magna EFI conversion and computer, lumpy crow cam*
*85 AB GSR Cordia - 2.0L, Gen 1 DOHC 4G63, 116.33 fwkw, 13psi ,Stocker TD05H 14B Turbo, Stocker computer, needs work to slow*

Driving a Cordia is not a Crime

Hey mate i've been following this thread, thought i'd chime in. From my experience you don't usually notice a flat spot unless the car is under load. In neutral it would be more of a misfire or hesitation. I'd check that all the spark plug gaps are the same and set right. What sort of leads are you using? I'd highly recommend getting a set of magnecor. I've been using them for years with no problem and i've seen other cars mysterious electrical gremlins disappear after changing over to them.

Oh ok cool thanks
Yeah I'm running Ngk leads I will havevlook up what ones
But just replaced them with what was already on setup.
And Ngk bpr6es ( i think)plugs gapped to 0.8mm.

_________________
*81 GH Sigma*
*85 GK GSR Sigma - 2.6L, 4G54, 71.6rwkw, NA pig, TR magna EFI conversion and computer, lumpy crow cam*
*85 AB GSR Cordia - 2.0L, Gen 1 DOHC 4G63, 116.33 fwkw, 13psi ,Stocker TD05H 14B Turbo, Stocker computer, needs work to slow*

Driving a Cordia is not a Crime

Spark plugs........I always run NGK BR8ES in the DOHC and B7ES in the SOHC.............running the six (6) is a higher temperature plug which increases cylinder temps, with the "P" is a protruding electrode.....in high powered engines this can cause detonation as the tip of the plug "glows" and ignites the fuel mixture BEFORE the plug fires...............my suggestion........replace your plugs.

I've been using bp7es ngk in the dohc and have had no problems. I gap them to 0.75mm. I agree with Andrew though, get rid of the 6es and run 7 or 8's.

Oh ok good to know thanks guys

Yeah was just using them because Ngk
Had them listed for hh galant vr4

Ill give those ones ago

I wonder if other listings aren't quite right
My everyday toyota pings like a bitch
Running 98 in it now better. But on hot days
Still does wonder if should try a different
Plugs In it too. My mate actually suggested that
For the Toyota.

_________________
*81 GH Sigma*
*85 GK GSR Sigma - 2.6L, 4G54, 71.6rwkw, NA pig, TR magna EFI conversion and computer, lumpy crow cam*
*85 AB GSR Cordia - 2.0L, Gen 1 DOHC 4G63, 116.33 fwkw, 13psi ,Stocker TD05H 14B Turbo, Stocker computer, needs work to slow*

Driving a Cordia is not a Crime

Also what r ur opinions on v cut electrode
Plugs. The place I go usually only stocks ngk v cut
Plugs think the just add ya on the end of
The plug number.

_________________
*81 GH Sigma*
*85 GK GSR Sigma - 2.6L, 4G54, 71.6rwkw, NA pig, TR magna EFI conversion and computer, lumpy crow cam*
*85 AB GSR Cordia - 2.0L, Gen 1 DOHC 4G63, 116.33 fwkw, 13psi ,Stocker TD05H 14B Turbo, Stocker computer, needs work to slow*

Driving a Cordia is not a Crime

There is no real performance gain with V grooved plugs.......they just stay cleaner.......whatever you do don't buy Splitfire plugs.....had many, many, many problems with those....the ceramic would break off and cause a misfire.......funny thing is when you take them out they look fine, when I heard the "tink" on re installation.....all removed and put in the bin!!!!

Hmm that would've been frustrating aye.
So Ngks are the go? Heard champion plugs
Aren't bad either. But think there numbers are backwards to
Ngk

Think might try one step colder in Toyota too. Might solve that issue
Too.

Thanks

_________________
*81 GH Sigma*
*85 GK GSR Sigma - 2.6L, 4G54, 71.6rwkw, NA pig, TR magna EFI conversion and computer, lumpy crow cam*
*85 AB GSR Cordia - 2.0L, Gen 1 DOHC 4G63, 116.33 fwkw, 13psi ,Stocker TD05H 14B Turbo, Stocker computer, needs work to slow*

Driving a Cordia is not a Crime

If using standard ignition, NGK BPR8ES (copper) is where it's at. Bring the .8mm gap down until it no longer breaks up (.65mm in my case) and you are good to go! I replace my plugs every oil change @5,000k intervals. I also buy 20 plugs at a time since auto stores will rarely carry these on the shelves.

If you find the BPR8ES are prematurely fouling, swap them out for BPR7ES and see how you go.

Iridium plugs in my experience with after market tuned engines has been crap, they handle very little in terms of abuse and leave you with a large plug gap as the center electrodes melt away at the limits of fuel. I encountered this a few times, swapped out to coppers only to never have this issue again.

_________________
|VR4 4G63 RS|MicroTech lt8s|Ported TD06sl2-25g|Ported & Polished Head|HKS Front Mount|3" Exhaust|
|Coilovers|Swaybars|VR-4 2pot Calipers|TP rears|Evo3 Master/Booster|Evo 3 front bar|Side Skirts|Rear Lip|

Thanks everyone for the suggestions
Guess it's abit of trial and error.

And I guess ev bods got different setups.
Will let u know how I go.

_________________
*81 GH Sigma*
*85 GK GSR Sigma - 2.6L, 4G54, 71.6rwkw, NA pig, TR magna EFI conversion and computer, lumpy crow cam*
*85 AB GSR Cordia - 2.0L, Gen 1 DOHC 4G63, 116.33 fwkw, 13psi ,Stocker TD05H 14B Turbo, Stocker computer, needs work to slow*

Driving a Cordia is not a Crime

Decided to give the br8es plugs what gap
Do u usually run on them .8 ?

_________________
*81 GH Sigma*
*85 GK GSR Sigma - 2.6L, 4G54, 71.6rwkw, NA pig, TR magna EFI conversion and computer, lumpy crow cam*
*85 AB GSR Cordia - 2.0L, Gen 1 DOHC 4G63, 116.33 fwkw, 13psi ,Stocker TD05H 14B Turbo, Stocker computer, needs work to slow*

Driving a Cordia is not a Crime

The normal gap is 1.1mm.........I would close them down to 0.80mm.........if you have ignition issues you can close them down further as per Koray's post.

Tried .8 and .75 should I keep going,
Maybe something else is wrong?

_________________
*81 GH Sigma*
*85 GK GSR Sigma - 2.6L, 4G54, 71.6rwkw, NA pig, TR magna EFI conversion and computer, lumpy crow cam*
*85 AB GSR Cordia - 2.0L, Gen 1 DOHC 4G63, 116.33 fwkw, 13psi ,Stocker TD05H 14B Turbo, Stocker computer, needs work to slow*

Driving a Cordia is not a Crime

Its ok to go lower, I run .65mm

_________________
|VR4 4G63 RS|MicroTech lt8s|Ported TD06sl2-25g|Ported & Polished Head|HKS Front Mount|3" Exhaust|
|Coilovers|Swaybars|VR-4 2pot Calipers|TP rears|Evo3 Master/Booster|Evo 3 front bar|Side Skirts|Rear Lip|

Koray
You know much about ecmlink?

I have the full version chip, just wondering
If has something to do with launch control
I have to turn off?

But I guess 4500rpm is a bit low to launch

Maybe 2 step enabled?

_________________
*81 GH Sigma*
*85 GK GSR Sigma - 2.6L, 4G54, 71.6rwkw, NA pig, TR magna EFI conversion and computer, lumpy crow cam*
*85 AB GSR Cordia - 2.0L, Gen 1 DOHC 4G63, 116.33 fwkw, 13psi ,Stocker TD05H 14B Turbo, Stocker computer, needs work to slow*

Driving a Cordia is not a Crime

Spoke with mechanic
Apparently the ecmlink chip does that standard.
I thought I'd had to setup launch control.

It Has 2 step already programmed in it
That's why it wasn't going past 4500rpm
And loads up motor so can boost off the line
Then second limiter comes in at 10km/h. (7000rpm)

Ill plug in laptop when get a chance and change
The first limiter value to make sure that's
What it is.

Sorry for the bad description on the fault
Should've said wouldn't go any further than 4500 rpm

Dunno wether to disable it or not.
Ill prob stack it trying to launch a cordia.or even worse
Break it lol

_________________
*81 GH Sigma*
*85 GK GSR Sigma - 2.6L, 4G54, 71.6rwkw, NA pig, TR magna EFI conversion and computer, lumpy crow cam*
*85 AB GSR Cordia - 2.0L, Gen 1 DOHC 4G63, 116.33 fwkw, 13psi ,Stocker TD05H 14B Turbo, Stocker computer, needs work to slow*

Driving a Cordia is not a Crime

If i try and launch my car i could easily end up 2 lanes over.