almost there

[yaksarunner]

Hi all, can you have a look at my files please....im trying to get the accel enrichments sorted car hesitates when I hit the throttle hard,

[gtmdriver]

This log seems to be with the engine just idling and you blipping the throttle. Is that where the problem occurs?

what sort of set up do you have?

ITB's or individual port injection needs very little acceleration enrichment.

I had a similar problem with the engine dying when opening the throttle and I cured it by backing off the AE so that the range was only from 1.5% minimum to 3% maximum.

[yaksarunner]

thanks for the reply...it's a rover 4.6, edis 8 set up.

[gtmdriver]

More details if possible?

[yaksarunner]

thanks for the reply.... i'll try.... megasquirt 2 v3 3.4.0 filmware...edis 8 ignition ...bosch idle valve...36-1 trigger wheel...ford tps sensor (rover tps not very good)..wideband ego sensor.... ecu made by Phil Ringwood... 2.10 filmware (2007).

[gtmdriver]

Single throttle body or ITB?

Port injection or single point injection?

[yaksarunner]

Hi... the engines from a range rover (hotwire system) single plenum 8 injectors, each has it own injection port but shares the air from the plenum....hope this helps.....thanks

[turbo conversion]

What firmware are you running, you listed 3.4.0 and 2.1.0?

David

[yaksarunner]

Hi ...been on 3.4.0 for a while now...thanks

[gtmdriver]

OK. So its similar to mine in principle then. Single throttle body with individual port injection.

The advice I was given, which worked for me, was to back off the acceleration enrichment as there's no fuel drop out with port injection so you need a lot less acceleration enrichment than you would with a carb and long inlet port runners.

[turbo conversion]

A couple of things seem to be set wrong in your tune.

Under ignition options the dwell for EDIS 8 should be set to fixed.

Under barometric correction if I am not mistaken, correction should be set to 100 with 3.4.0 firmware or turn Old baro calc on (someone correct me if I am wrong).

One other thing that looks odd to me under general settings is MegaView Temp Units is set to fer. but everything is in cel.

Can someone shed some light on this?

David

EDIT: word

[yaksarunner]

thanks for the reply...I've looked at an old megatune file 2008 and it was set at fixed duty...don't know how that changed? will alter when I get home...thanks

[turbo conversion]

thanks for the reply...I've looked at an old megatune file 2008 and it was set at fixed duty...don't know how that changed? will alter when I get home...thanks

That is one of the things along with baro calc that has to be reset going from 2.1.0 to 3.4.0 firmware.

David

[yaksarunner]

Hi.. thanks for taking the time to look at my msq file if you see anything else please feel free..... I've tried to take screen shots of every msq file page and alter anything that looks odd...since upgrading from 3.2.5 the cars not been right and the labour of love has been long......car built in 2004....megasquirt fitted in 2007.....car has not got 4k on it yet....thanks

[turbo conversion]

Did you also set your baro calc correctly?

Can you post an updated msq and data log of the problem?

David

[yaksarunner]

I will do so on sunday and post the files....working while 19:00 today (Saturday).....thanks

[yaksarunner]

Hi.. ran the car this morning, throttle response was a lot better....thanks

[turbo conversion]

Have you driven the car or are you getting it ready to?

Your timing in the lower kpa seems a little retarded.

Save your tune and maybe try 800 rpm=12 1100 rpm=14 change 1200 to 1300=16 deg.

I think this will help a little with throttle response.

David

[yaksarunner]

thanks for the reply...the car is road legal, its just the weather..... I will have a drive and data log in a few day and post.......please keep in touch ... thanks