B20VTEC Engine Jerks/cuts out on Full throttle/load **HELP**

[iv73ci]

Hi,

ive got a B20VTEC into an 99 EM1 civic coupe / Si.

Engine specs:
PR3 ITR Head
Stock ITR Ports
Omni 68mm TB
Supertech valve train - springs and retainers. Stock ITR valves
Works Engineering Fuel Rail with RC 440cc injectors.
OEM Fuel pressure regulator
CNC combustion cambers
Rocket M22x Cams
11.3:1 Compression

Bottom End
RS Machine 84.5mm pistons
H-beam Forged Rods
Fully balanced bottom end

Bolt-ons
Big tube 4-2-1 headers
2.5inch exhaust system
Hondata S300 P06
tuned on E85 fuel. 147fwkw (v1 tune)

Recent engine conversion from one car to another. Was working fine in the previous car (DC2) without any issues. just remove engine and fit and minor fine tuning

Once the engine has been installed in my EM1/Si the problem starts.

Basically, when you sudden give the car a full throttle/load launch on below 3000rpm on 1st or 2nd gears the engine accelerates then cuts off/jerks then continues .. it happens day or night conditions and only happens when your on low RPM and give it a sudden full throttle.

We have replaced to another OEM TPS and still failed. MAP sensor is OEM.. the TPS has been set to 0.5v closed and open 4.5v stock and values changed in the Smanager.

Rev limiter is set at 8500rpm

Vtec engagement is @ 5500rpm

My tuner has changed values for the TPS in Smanager and problem is still there.

The TB is a 68mm Omni and has been working fine in the previous car donor.

What could this problem be?

Fuel pump delivery?
MAP Sensor?
Faulty TPS?

***UPDATED***
Calibration attached.

but no datalog :(

[Spunkster]

http://www.hondata.com/forum/viewtopic.php?f=19&t=3772

[iv73ci]

http://www.hondata.com/forum/viewtopic.php?f=19&t=3772

Ill get the calibration and datalog frm my tuner.

[iv73ci]

http://www.hondata.com/forum/viewtopic.php?f=19&t=3772

Ill get the calibration and datalog frm my tuner.

Calibration now attached!!

Please HELP!!!

[Spunkster]

need the datalog showing the problem

[iv73ci]

need the datalog showing the problem

Dammit.

My tuner doesnt save datalog.

I have to pay him just for a power run to obtain a datalog :(

Any other way round it?

[Spunkster]

datalog yourself

[iv73ci]

datalog yourself

How??

Plug in laptop to hondata and go for a test drive??

Do i need to turn on datalog in smanager?

If so where?

Do i need smanager online to datalog? Or can i datalog without having the laptop plugged in? Ten download the log after?

[Spunkster]

Connect your laptop and datalog directly and make a recording of the problem then save it. You do not need to turn on on-board datalogging.

[iv73ci]

Sorted the problem out.

Turns out the TPS needed a replacement.

All sorted.