Overfueling/flooding after EManage install

Over this weekend I've fitted 800cc injectors to the stock rail and installed the emanage blue. Finally got Ian C's base map loaded which is afaik set up for this injector size.

It fired up the first time but ran very rough and had a very smoky exhaust. I turned it off for a couple of minutes and tried again but now it won't fire up at all.

Pulled the no2 plug and it was soaked in fuel.

Fuel pressure was 38psi before swapping the injectors and fuel hose. The only thing I change was moving the fuel return line from one side of the fpr to the other and installed a new fuel return line. There doesn't appear to be any leaks but after turning it over the whole car stinks of fuel (presumably form the exhaust).

Looking at the map Ian has set -29 on the airflow map around the idle speed (though there is some minor variation).

Any ideas what the cause could be?

was it a base map that Ian sent you or one of his that somebody else provided?

JB

It was the one Ian sent me. I've used the compare maps funtion and its definetly loaded.

Ian's not been online for a while and not sure when he'll be back

Whats the AFRs?

Can you not pull some more fuel out to get it idling nice.

If i remember correctly the EMU has an unflooding feature which is activated from the IGN switch.

Whats the AFRs?

 

Can you not pull some more fuel out to get it idling nice.

 

If i remember correctly the EMU has an unflooding feature which is activated from the IGN switch.

Its not actually starting so not sure if AFR's are going to be relevant (are they?)

At this stage I don't want to mess with Ian's map, but may change it tomorrow if he doesn't get in contact

Its an EM Blue, not ultimate, so no unflooding feature.

One thing I just noticed, when going to 'Main unit setting information' I get the message "Warning ROTERY SW has changed" before it opens the screen.

Presumably this relates to the 3 rotary dials inside the EM. The info screen shows:

Rotary SW1: 7

Rotary SW2: 2

Rotary SW3: 4

Lost me now

Anyone, please?

Have a look at the unit and see what the physical dials are set at, left to right first 3 should be 7 2 4 and the remaining 7 dials Zero'd.

Would probably be a good idea just to check the jumper settings within the unit, will dig out the settings iuf ya need them.

Whats the base FP at with ignition on? this problem can also arise from a static (Stuck open) injector.

Emanage blue is designed to run injectors no more than 700cc. If you are running 800cc - you should have an emanage ultimate NOT a blue - this is your problem!!

Have a look at the unit and see what the physical dials are set at, left to right first 3 should be 7 2 4 and the remaining 7 dials Zero'd.

 

Would probably be a good idea just to check the jumper settings within the unit, will dig out the settings iuf ya need them.

 

Whats the base FP at with ignition on? this problem can also arise from a static (Stuck open) injector.

Thanks for the response.

I checked the dials and jumpers before installation, they are all as above.

How do I find base fp?

Emanage blue is designed to run injectors no more than 700cc. If you are running 800cc - you should have an emanage ultimate NOT a blue - this is your problem!!

Thats not correct, please get a clue before posting in technical.

Bridge out the FP and B+ terminals in the diagnostic block, Switch ignition on which will run the pump. Check your Fuel pressure.

What size of injectors was Ians base map set for do you know, -29 sounds around the 550cc mark if originals were jspec?

Homer,

Can you draw a diag/phto your FPR setup, you've confused me with saying you've moved the return...

Do you mean you've moved the INBOUND from the rail to the otherside ie left to right or do you mean you've moved the OUTBOUND return to tank from the bottom to a side port? If you've done the latter the FPR won't work. The return to tank HAS to come off the bottom port. If you could just clear that up we can look at other settings.

Emanage blue is designed to run injectors no more than 700cc. If you are running 800cc - you should have an emanage ultimate NOT a blue - this is your problem!!

Who told you that? However it was is wrong.

Homer,

 

Can you draw a diag/phto your FPR setup, you've confused me with saying you've moved the return...

 

Do you mean you've moved the INBOUND from the rail to the otherside ie left to right or do you mean you've moved the OUTBOUND return to tank from the bottom to a side port? If you've done the latter the FPR won't work. The return to tank HAS to come off the bottom port. If you could just clear that up we can look at other settings.

Thats what im thinking too alex, the Fuel pressure wont return and should be sky high

Homer,

 

Can you draw a diag/phto your FPR setup, you've confused me with saying you've moved the return...

 

Do you mean you've moved the INBOUND from the rail to the otherside ie left to right or do you mean you've moved the OUTBOUND return to tank from the bottom to a side port? If you've done the latter the FPR won't work. The return to tank HAS to come off the bottom port. If you could just clear that up we can look at other settings.

When I say moved, I meant physically moved the return line from the left side to the right on the attached picture. I'm pretty sure this has nothing to do with the problem.

Unfortunately the blanking bolt on the fpr is routed out so I cannot remove it to fit a pressure gauge. I do have the aeromotive copy fpr that came with the xs power kit, do you think it's worth swapping in to verify fuel pressure?

Yep that's fine, just had to double check...now back to the problem...

Erm...if it soaked the plugs then it's running too much fuel obviously. Try dialing about 5% out at a time and see what happens. Obviously you'll need to dry the plugs first. Save a new map each time.

Yep that's fine, just had to double check...now back to the problem...

Erm...if it soaked the plugs then it's running too much fuel obviously. Try dialing about 5% out at a time and see what happens. Obviously you'll need to dry the plugs first. Save a new map each time.

In the airflow adjustment map I've got as far as changing everything in the idle area to -50. Its still the same.

It did start up but had the same symptoms as yesterday. AFR's were 10.00 on the gauge.

Can you send me your map please to the addy I've PM'd you?

I need to see what you're seeing and I don't want Ian's map posted on the bbs

I do think you need to recheck your fuel pressure though and possibly adjust it down to say 34psi...but let me see the map before we jump to conclusions.

Great, just emailed it

Ok - I'd put Ian's map back on as yours wont work...the -45 at xxx revs is the one controlling the cold start...you can change this one to -40 or -50 and tinker around that area but none of the others should be played with. The -29 is a warm idle...again you can only fiddle here once you have warmed the car up and it's trying to idle around 700rpm.

The other thing you could try is changing (change scale button) the second column to a slightly higher RPM... maybe try 200rpm extra. But don't stray too far from settings that do work on other cars. All cars are different and it always takes some fine tuning.

I would though, first, check your fuel pressure as a matter of course after changing the FPR setup. I think you must know this before continuing.

Send me a mail when you've tested this out

Forgot also, when looking at the datalogger screen (Real Time Display), can you check the TPS registers as 0%.

If you haven't done it already you should calibrate the throttle in the Parameter Settings...as again, all cars are different.

And another thing...

Please check your Duty Cycle if you do get it to start.

FWIW, you may be underfueling...this looks like overfueling but actually it's not, because the AFR isn't right for ignition it doesn't burn but you still see wet plugs etc...so you may need -40...