Hot Starting on 3sgte 2nd gen

[rockyboist]

Hi, I need help with it as it doesn't start when engine is at the operating temp. In order for it to start I will have to let it cool a little, when the water temp goes down less than 70 degrees I could start the car again no issues. Car starts perfectly when cold.

It cranks but does not continue/fire. Sometimes when I keep trying it will start but that's just luck. No pattern observed.

Attached are the logs and scope. Can someone help please? Any suggestion? I have tried the below to no luck:

- Trimmed and added in VE table
- Trimmed and added fuel in Engine Start
- Prime pulse (enabled/disabled, addedtTrimmed)
- Batch injectors (enabled/disabled)
- Changed dead time in cranking fuel (added/trimmed), and matched it close the PW
- Changed Cranking IGT
- Changed injector dead time under Fueling to what I had on the cold temp
- Adjusted ignition in the IGT map (added/trimmed)

[silikone]

check ''secondary trigger'' settings
you have problem with camsync

[rockyboist]

Thanks for the response, here's my secondary trigger settings, what do you suggest needs changing there? I remember the enable advanced filter was not checked before but I had some issues that if I hold the throttle at 2k rpm, the rpm fluctuates going up and down. Enabling it and putting 24 in the trigger tooth resolved it.

[silikone]

do you tried to disable the filter?
check your sensor wiring, shield...

[rockyboist]

Tried disabling, did not work. What sensor to check and how?

[pepifebles]

Upload your project. Think that your dwell time and cranking afr is too high. Probably there is other problem but that sets don't help.
This is my gen 3 secondary trigger.

[silikone]

engine does not start because the ECU does not see the signal from the camsensor
EMU is not synchronized. Injectors will not open.

how you connected the sensor?
maybe your camsensor is broken?
if wiring is OK, try connect pulldown to signal wire.

[pepifebles]

engine does not start because the ECU does not see the signal from the camsensor
EMU is not synchronized. Injectors will not open.

how you connected the sensor?
maybe your camsensor is broken?
if wiring is OK, try connect pulldown to signal wire.

Why start with cold temp? If no read or broken sensor, dont start never.

I think that any set its wrong.

[silikone]

Look at the logfile and scope. No signal from cam.

[Welshman]

would help if he posted his map

[pepifebles]

would help if he posted his map

Exactly

[RHD]

i think your cam sensor is broken, often faulty electrical components are affected by heat

[rockyboist]

Ok I'll upload the whole project later. Thanks for the help guys.

[rockyboist]

Here's my map/project uploaded, can you take a look guys and let me know?

I'll try a different distributor and see if it helps. I noticed I could start it even when it's hot if I rev the car for say 4-5 times up to 3-4k rpm before I turn it off, it will fire right up.

[gips]

It can be a faulty EMU. I had the same problem , although mine never got started at all. There was no cam signal at all, no matter cold, or hot, so be advised. Ecumaster replaced some chip in the EMU and its working flawlessly since then

[rockyboist]

gips, I hope that it is not. I am yet to replace my distributor and test.