Hey I got my 98 civic swapped over to a b18 slapped on a turbo, 450 cc injectors, head gasket, timing belt, and water pump while I was at it. I socketed the ecu and have an ostrich 2.0 etc. To datalog, my problem is it won't stay running, turns over and fires but as soon as I stop pressing the gas she dies any ideas of what to trouble shoot?

 

Did you happen to put a base tune on the chip you slapped into teh socket? This could be a number of things,, really.

 

Yes I did, base map generated via honda tuning suite

 

That's really all I got on this. Lol! I'm not a promoter of chipped setups in any sense.. Other than that, too many possibilities. Map sensor/tps maybe crossed. Injectors not working properly or not programmed properly..
You smell gas pretty heavy when and after it dies?

 

Yeah I do plugs soaked in gas too

 

Have double checked map and tps because that was my first thought as well, all good there!

 

Bad basemap.. Waayy too much fuel. Injector deadtimes, too rich, etc..

 

Okay thanks ill try to adjust the fuel cycle

 

bring it down by a lot! What injectors you using?

 

450ccs backed by a walboro 255

 

what brand is what I meant.

 

Universe parts ebay knockoffs

 

They send deadtimes?

 

Coil Resistance: 12.5 Ohms / High Impedance（NO RESISTOR BOX NEEDED）
Static Flow Rate: 52 lb/hr = 550cc/min @ 43.5PSI ( 300kPa )
Gain: 0.12ms/MG
Offset: 0.055ms
Turn on time @ 14VDC: 1.14ms
Turn off time: 0.85ms @ 300KPa
Amperage: 1.0 Amps Pressure: Min 30PSIG/ Max 100PSIG Flow Matched within 2%

Length: 3" (76mm)

Top O-Ring Diameter: 11mm

This was all they gave me

 

You try adjusting your initial fuel table or just a new map altogether?

 

New map altogether

 

No change? Still dumping fuel and no start?

 

Not firing at all anymore

 

All the reason to avoid the chipped things. Maybe somebody could chime in that may know more. Good luck to ya.

 

Based on your first issue of it running then will only run when you give it throttle. Probably dumping fuel and it needs the air to help it lean out enough to run. What’s your fuel pressure set to? If the plugs are soaked with fuel they could be getting fouled out very quickly. Try going into your basemap and reducing your fuel, try your table and/or cranking fuel. You might have to pull the plugs and burn them after extended cranking and it tying to start.

 

First bit of advise is stop doing what your doing and take it to a tunner. If you are set on doing your self. Make sure you have the right map sensor set on the tune. Check fuel pressure. Check dead times for injectors. Then pull 20% out and keep pulling 5% til it will run. If your duty cycle in the map is below 2-4% at idel something is not right in dead times or map sensor settings.