Could any body help my engine turns over and fires on about 2 cylinders but will not start checked the usual crank Sensor Phase Sensor it has fuel and spark but will not start
seam like the firing order is worng but checked out OK

 

ecu shagged. Is there a spark on all plugs?

 

Tried a different ECU still the same that's not shagged either spark at all plugs

 

Check that all four lugs are intact on the crank pulley.

Martin

 

What colour are the plugs, are they iridium plugs, these can die very easily when sooted up and no amount of cleaning will revive them in a lot of cases.

tabetha

 

Tabatha

The Plugs are black sooted up I have tried 2 different sets they are

Motorcraft Super AGPR 901C
NGK 5430 BCR8ES

checked the plug leads all OK

 

I had the same problem, it turned out to be the map sensor

 

Got a spare 2bar Map Sensor the Ecu is set up for a 3 Bar do you think it should be OK to try it ?

 

It should be ok but so long as it is just to test it, it won't run properly with it as the values are totally different between the two. Also did you check the lugs?

Martin

 

Tried the 2 bar map sensor it tried to start better but did not may be the fault have ordered a new 3 bar sensor will try that Thursday all the bits are on the crank pulley
It is nearly a new engine only been dynod and about 50 miles

 

Any More Ideas or should that cure the problem I am Competing (or NOT) on Mira on 16th April so need as much HELP as possible

 

Fitted the new 3 Bar Map Sensor it tried a little harder to start but still did not go then had a brain wave (or thought so) and changed the ISCV it was full of coke thried to start again was again a little better but still no GO

Any Ideas

 

Does anyone think it may be the Ignition Amp?

I have just ordered one off Stu @ MSD

could any body help?

 

So it's deffo getting fuel?
Power to injectors?
Crank sensor is ok?

 

Yep Deffo Getting loads of fuel have to burn off the plugs after every attempt
Power to Injectors
Tried another Crank Sensor same result
Tries to start with ignition push button kept in and applying throttle but stops as soon as I let go

 

It was running ok before on the Dyno without problems.?

Has the Cam Belt been off at all since it was running last and then maybe not timed up correctly, check all the timing marks with dizzy. 1 tooth out will cause problems.

Have you checked the Phase Sensor inside the Dizzy – no corroded wires & check GAP.

Have your just put the engine back in and put the Connector\loom\wires from (CPS) Crank Position Sensor to the dizzy by mistake. – check you have the right connector on Dizzy & CPS.

Check GAP on Phase Sensor in Dizzy and GAP on CPS.

hope that helps mate.
thanks,
Manoj

 

Thanks for your points but the engine was OK after Dyno and on the last outing on a track day at RAF Barkstone (pulled a front drive shaft out and damaged it now replaced with an XR 4x4 one) left it in the garage for a couple of weeks fitted new drive shaft and noticed the eccentric top mounts were not in line with each other so moved them but have to repossition Ignition amp and Map sensor mounting, also drilled and tapped jet holes in alumimium inlet pipe between silicon hose to inlet manifold (not in inlet manifold) piped to water/methanol injection solanoid wired back to water injection switch then tried to start and it will not go but tries to fire
Checked the Crank Sensor (tried spare) and Phase sensor, new Map sensor cleaned out ISCV Checked all timing marks and cam belt has not been off

 

The different plugs you tried, were they brand new out of the box?

 

No old plugs that had been OK but new set of Champion C57's should be here today so will try tonight

 

Great news Car now RUNNING turned out to be an Ignition Amplifier:clap :