drugblock12a

iTrader: (7)

I am running an lt-10 on a stock jdm s5 block...yadayadayada....Now when I got the car it was getting no spark whatsoever. I replaced both coil pack and installed some fresh spark plugs.....started right up fine. It ran fine for about three days then no spark again....both packs.....What should I be looking for? I am useing the stock t2 packs.....someone help me!!!!!

rx72c

iTrader: (8)

How have you wired up the coil packs?

While your cranking are you getting a CAS pulse(orange light flashing on microtech while its cranking?).

drugblock12a

iTrader: (7)

i will check asap

does the orange light mean somthing is wired wrong?

rx72c

iTrader: (8)

A flashing orange light means your cas is working.
not working means its not working and you wont get spark or anything for that matter.

drugblock12a

iTrader: (7)

the orange light is blinking....now the car was running fine before it has even been tuned. I got it started once today and it was pefectly fine once it got started. Rpms were where they should be and it drove fine. Then i started to bolt the coil pack down all the way and the rpms started to drop....like it was grounding out.....after that i could get the leading to fire sometimes and sometimes i got the trailing firing but only when they were touching metal (i had them out).....the coils still check good but only fire sometimes....fouled spark plugs? help.....

drugblock12a

iTrader: (7)

broke down and changed the plugs out....it came to life....idles at about 950 to 1000 rpm.....i can't keep replacing spark plugs what could cause them to keep fouling?

10sec rx7

its too rich!

rx72c

iTrader: (8)

**** tune definitely.

drugblock12a

iTrader: (7)

has been tuned by steve kan.....a/f shows 11.5 to 12.5 most of the time.....just burned another set today.....

rx72c

iTrader: (8)

What afr meter are you using to verify the above AFRs?

13b should idle all day long at 11.5:1 AFR and not flood.

I think you should give it back to steve and let him verify AFRs are still correct.

ALSO what spark plugs are you using?

drugblock12a

iTrader: (7)

useing an AEM UEGO wideband and I have an o2 sensor too....

it does idle at about 11.5 and has never flooded

steve bounces around alot as he is in demand but i will see him the next time i can

now it was useing all stock t2 ngk trailing plugs and they went out so i got some stock ngks to replace them...2 trailing(bur9eqp)....2 leading(bur7eq)

i'm in san diego and the weather is about 65 to 45 degrees farenheit....is this a factor?

i was thinking i need colder plugs because they seem like they can't handle what's going on inside the motor.....but it only runs 6 pounds...

rx72c

iTrader: (8)

If its on 6 pounds.

Run 2 Bur7eq and 2 bur9eq.

A tuner needs to look at your car and check the cold start etc.
Unless the motor is low on comp?

drugblock12a

iTrader: (7)

might be getting low on compression.....it smokes and burns oil i'm sure the oil control rings are goin out......i do have another block but i wanted to make sure this problem wouldn't be an issue with m new block....right now I am running NGK5820's and 5238's on the advice of someone who knows a little about spark problems.....we'll see how it goes and i'll keep posting...This block is an s5 do you think i will have the same problems with a lower compression s4 block?

i tried the plugs you suggested yesterday.....didn't last long....

rx72c

iTrader: (8)

If the plugs i suggested didnt last long. THEIR IS A BIG PROBLEM.
AND IF YOU insist that the tune is good, then you have two things to check.

Have you tested spark at every lead while the car is on?

Have you tested your injectors to see if they are leaking?

If that is all good, i reckon your engine is leaking a large amount of oil or water and killing plugs

drugblock12a

iTrader: (7)

The leading plugs have checked good and trailing plugs will get checked this week.

I have no yet tested the injectors hopefully I will get around to that this week.

I had someone I trust come over and we checked the timing and it was a little off....we corrected it and adjusted the idle. The oil control rings are for sure on the way out. It's not leaking water/coolent anywhere inside or out....levels are steady. However it was a little too low on oil and I am keeping close tabs on the consumption.

It has been established today that it is having fuel problems.....flooding and maybe leaky injectors as you suggested. I am going to install a fuel cutoff switch to see if it helps a little with the flooding.....do you think that will help at all?

As for the spark plugs the ones I am running now they seem to be working well and the idle and smoothness of the powerband have improved enough for me to notice. I am listening to your advice but please excuse me if I am jumping around....there are many small problems I am trying to solve right now.....

rx72c

iTrader: (8)

If the fuel switch helps your injectors are leaking.

drugblock12a

iTrader: (7)

i found that the rear rotor's plugs were wet this moring.....so figuring that one of the injectors on that rotor is leaking i installed a cut off switch today. i started and shut off the car three times and it seems to be doing the trick.....also i had to adjust the idle a little just to be on the safe side and i left it there while i was checking the connections, i noticed that it wasn't smoking as much. i had also talked to the previous owner and he told me it had always had to idle high because it had fuel issues at low rpms (maybe a half *** tune?) so at 1500 rpm the car does not sutter or bog anymore......i think i'm getting this one under control.

now the turbo is leaking.....i do need a gasket between the down pipe and the turbo right?

oh yeah and thanks for all your help....

rx72c

iTrader: (8)

Of course you do. Need a gasket at every join. Also put high temp silicone.

Also.
take your injectors, get them checked, get new ones if necessary. And get it retuned straight away.
dont do things in halfs. do it properly.

drugblock12a

iTrader: (7)

I am trying to do everything the right way because I can tell the previous owner started to but it seems he lost it toward the end and just wanted the car to run. I have made alot of changes and now have the software for the laptop as the hand controller was not very good at changing things for me. I have sloved the gasket issue...I am taking the injectors out next week to be checked and I am also installing a rising rate fuel pressure regulator with a gauge. I met a tuner and we did a few basic runs and he showed me how rich it was and that the tune might have been done with the broken vacuum lines I repaired so it's all probably off.

I don't think I mentioned this but two major vacuum lines where busted so I changed them all to a higher quality kind and made sure they were routed correctly.....it's not a bad car but alot of the details were over looked and i am trying to correct them all one at a time. Thanks for your continuing input and hopefully this thing will be on track soon....