More Rb20det Problems

[Lucy The Skyline]

Right so a few days ago I replaced my BOV, The car wouldn't run well and then just stopped completely. I have reverted back to a standard BOV AND replaced my fouled plugs. Everything is seated right but the car still wont start. It cranks over well but just wont start. It almost ran but soon gave up.

Any ideas?

New plugs are NGK PFR6A-11 (Laser Platinum Series)

Old ones were NGK PFR5A-11 (Cheapest base plug)

[just_matt]

What did you gap the plugs to?

Have you checked for spark?

[Lucy The Skyline]

Old plugs were standard factory gap (1.1) so are the new ones. Spark is a yes

[just_matt]

When you replaced the BOV, how long was the new one on there? Would it drive at all?

Did the plugs foul with the new BOV?

[Lucy The Skyline]

Was on the car for a day, It would drive but not very well at all. Wouldn't boost and wouldn't idle well at all. The plugs fouled with the new BOV but they needed to be replaced anyway.

The new BOV was a HKS SSQV so it vented to atmo, apparently this doesn't fly well with standard ECU's hense the standard one going back on.

[just_matt]

I would close plug gap to 0.9 and see how it goes.

Other than that, check all electrical connections, fuses, etc...

Have you checked the new plugs since being installed?

Edited August 27, 2010 by just_matt

[Lucy The Skyline]

I've got it all pulled down to the plugs right now, I'll gap down to .9 and everything else has already been checked.

This has turned out to be a huge **** about just for a new BOV that I cant use.

[just_matt]

Maybe a stupid question, but when the HKS BOV was fitted did you block the recirc port off?

Also coil pack looms get brittle connectors from heat. Somthing to look at

[Lucy The Skyline]

Yeah the recirculation pipe was capped off. After checking all the plugs I went over the coil packs and loom, nothing loose or out of place.

[just_matt]

Im running out of idea's.

Disconnect battery for a few mins, re-connect and try.

[Lucy The Skyline]

Everything has been triple checked before going back together, battery is currently on charge while I have things switched 'on' to drain whats left from the system/ECU so it does a full re-set on itself.

I'll give it a few hours then fingers ****ing crossed it starts

[just_matt]

If you dont have any luck, maybe check the ecu for fault codes and post results.

See > http://www.nissansilvia.com/forums/index.php?showtopic=5082

[Lazy-Bastard]

have you checked the AFM plug is connected securely?

maybe unplug and re-connect

Same with igniter and coil pack connections

[Moodles2]

The new BOV was a HKS SSQV so it vented to atmo, apparently this doesn't fly well with standard ECU's hense the standard one going back on.

As I tried to warn you in your original thread, the AFM measures the incoming air as it comes in. By venting the air to the atmosphere, less air came into the intake manifold than was reported and why it ran rich & crap.

[just_matt]

Perhaps check spark at all coils, maybe several have decided to die.

You mentioned it "almost ran but soon gave up"...

[just_matt]

Moodles the car is now back to 'as it was' with new plugs, what could the venting to atmo also buggered up?

[timr32gts]

fuel pump mine did the same thing crank over fine almost start then doesnt and fuel pump was problem.

[Lucy The Skyline]

Fault code reads 5 Slow flashes and 5 fast ones so as far as the ECU thinks everything is working fine.

I cant think of anything else that would be wrong, plugs are new, everything is connected, ECU says its all fine but the bastard still wont start. It cranks but nothing happens bar the battery slowly going flat

Edited August 28, 2010 by Lucy The Skyline

[just_matt]

Is the fuel pressure regulator plummed into the same vac source as the bov?

Check all your vac hoses?

[Moodles2]

If the ignitor was disconnected to get to the sparkplugs, unplug both sides and firmly plug them both in again, and double check the ignitor's black wire is grounded to a clean earth.