Westory Progress.

C J R · August 07, 2015, 08:07:53 AM

Hi, with fear of offering just another set of topics to this complicated problem and not being able to provide a definitive answer... I experienced black plugs when the FD engine was rebuilt and not run in. My problems were finally identified as;
1. Plugs were wrong type, NGK 9's and should have been 10's & 11's. (already had HKS Spark assist module, but it masked wrong plug type)
2. Loom looked ok, but one wire to coil pack was shorting in the loom !!
3. Crank sensor lead from loom was fitted, but the bracket attaching the sensor to the front of engine was cracked, so it ran ok on tick over, but once car was moving, ECU received incorrect signals (this problem took a long time to find).
4. Crank timing wheel was slightly bent, so sensor could not pick up a good signal.

All of the above were identified at different times (if we identified them at the same time it would have saved me, Clive, Kerim and Jaydee a whole heap of time). Thanks guys for sticking with it and finally finding all of the above.

So, I'm not saying these are related to your symptoms, but I offer them as problems I encountered which may lead you to a solution.

Good luck (I know how annoying this is for you).

Chris

re japi · August 07, 2015, 09:13:21 AM

That 3rd and 4th I was trying to explain but couldnt cause my english

We have seens these things lately in rallycross cars here. Vibration is confusing ecu. And some times just when car front suspension gets hit, same result. I know that one bad sensor mounting "broke" haltech...

boosted · August 07, 2015, 09:19:14 AM

Thanks guys all help greatly appreciated....im gonna have a look at crank wheel (e shaft profile wheel) in a mo as it does have a very slight wobble.....im swapping plugs again as there out at mo.
Only got a few hours today as on 6 til 6 nights for weekend ill let you know.

re japi · August 07, 2015, 09:40:23 AM

Trust me, your problem is confusing me (and us) aswel...

Yesterday I had chat with ecu guru. He is wondering and thinking that problem too...

he said that seems like some kind of sensor fault. But dunno... Also he said that you and we should use volvo and saab engines! I replyed that go f your self!

boosted · August 07, 2015, 09:47:28 AM

Lol...saab is vauxhaul erghh z20let alright engine...and well volvo engines just too heavy and big! But none of them make power without turbos.. .
I mustve damaged summit putting in but no incident comes to mind.
Checking e shaft profile plate, copper fuel line in tunnel incase it got squashed somehow, digi dash disconnect in case interfering with coils and swapping to a used set and go for a gentle drive part throttle pulls.

Grant Monkhouse · August 07, 2015, 09:48:13 AM

Quote from: re japi on August 07, 2015, 09:40:23 AM
Trust me, your problem is confusing me (and us) aswel...

Yesterday I had chat with ecu guru. He is wondering and thinking that problem too... he said that seems like some kind of sensor fault. But dunno... Also he said that you and we should use volvo and saab engines! I replyed that go f your self!

Volvo and Saab don't do rotary engines though?

boosted · August 07, 2015, 09:48:55 AM

Rotor god is punishing me whilst that other engine is sat in corner of garage....

Grant Monkhouse · August 07, 2015, 09:49:28 AM

I'm still saying it's the ecu

boosted · August 07, 2015, 09:50:53 AM

Heading to the motorway for some 3rd gear cruising in higher revs. Its a lovely day here.

re japi · August 07, 2015, 12:07:47 PM

Older saab engines are good. And volvo engine that my friend is using in his lada isnt that big actually... And makes good power... But true, they need turbos

But if problem is in ecu or in wirings, should it make error codes? But I agree with grant, some thing might be messing system cause when high rev ports kicks in, then problems start...

boosted · August 07, 2015, 12:08:32 PM

Made it to Bath junction m4...just stretching my legs....3rd gear gentle pulls on m4 it revs out to 8800. Wtf like a rev limiter. Couldnt help doing some flames.

boosted · August 07, 2015, 12:11:31 PM

No codes pulled over this time to read. Gentle drive back but i think its fuel related its like it being strangled...big thanks guys for suggestions id run out of ideas.

re japi · August 07, 2015, 12:20:58 PM

So if its fuel related... Do you have so called acceleration pump there? If that is gone or going to brake?

boosted · August 07, 2015, 01:00:05 PM

My brakes are non servo totally seperate...fuel pump is 12v ive shorted out the 6v resistor shunt...BUT. i confirmed it still missed...but i managed 4 3rd pulls to 8800....is this thing learning? Flames and bangs greatly reduced.

boosted · August 07, 2015, 01:09:25 PM

Im just having a breather at my mate garage...as my feet got really hot...its getting better wierd.