I have a 2005; Haltech PS500 with an OBD2 compliant harness from FullBlown. Question is, what is causing this "hot start" and how do I disable it? It's supercharged now and it seems to only start on a 2 bar engine temp. Anything above that just turns (engine) constantly and the car doesn't start. I filled it up at the gas station (93) which it was tuned on, and left the parking lot to a stop sign. Stopped for a moment and all a sudden the car went to 500rpms and 2 seconds later shut off. I restarted it (engine start) and tried again, put some gas into it and same problem, car shut off. But power steering was still available. It seemed as soon as I gave the car a little throttle it would shut off faster....(when it was at 500rpms).

I'm changing the BOV, hopefully that's the problem? To a TiAL Q {aluminum flange} 8psi (spring); one. The tuner at Innovative said the BOV I had was......well.....a POS (HKS), and wasn't doing any pressure at idle, and asked me to change it soon; so I did. Spark plugs were changed (1 step colder) and yes I had a Walbro 255 pump with 675cc Seimens Dekka injectors.....

Also when WOT at 6K the car in RPMs drops back to 5K. I don't know what the cause of this is but any help on it would be great.....because it's really kicking my OCD up.


Any suggestions would be appreciated!

 

were you running the vortech FMU before this?

can you hear the walbro running or does everything shut off? this is strange indeed...

 

I never ran the vortech FMU; I went straight to a Haltech PS500 standalone unit; had it installed/tuned with it and never used any of the vortech black box/FMU or anything.....

As for the Walbro running....I don't really know....I never have had an F/I car before but at around 2Krpms there is a little shaking/cluttering sound.....I don't know if that is install error or normal

 

Lol, not a bov issue at all

Somethong is wrong with your tune. Take it back and get them to fix it.

 

That is one of the things I am working on and they are giving me a different map. What is weird to me is the damn thing drove fine 330whp from PA to Maryland (60MI) and all a sudden after I put gas in it decided to crap out on me. I don't know what would of caused it

 

Vtec is supposedly set at 4K.....


I don't know if this changes anything or not but trying to give as much info as possible



PLM Header
BERK 70MM HFC
Invidia Q300 V4
Haltech PS500
Competition Stage 2 Clutch
Stock Flywheel (AP2)
Ap1 slave cylinder

 

They put the gas cap back on tight?

 

I did because I put gas into it.

 

Has this been tuned? please email me the calibration and I will have a look at it. Fullblownmotors@gmail.com

 

Nm I missed that part. Hot starts are a tuning issue. Please email me your cal and I will try and help you fix it.