cold start issue hptuners help needed
cold start issue hptuners help needed been having an issue with my car starting after sitting for a few hours. it always fires right off when up to temp, but takes a few key cycles when it has sat. throttle input doesn't help at all, so i'm pretty sure it's not needing more air.
its a lq4 bored .030 with flat tops, 243 heads (ported, valve job, pac 660s) ported fast 92mm intake manifold, 92mm nw dbc throttle body, fast 36lb injectors in a bmw e39 wagon
it had a 228/232 .600 112 tsp cam in it and it always started fine, problem started after I installed a tick sns stage 3 cam.
I brought it to a local, well known tuner and they did a dyno tune and some driveability, but couldn't pin point the cold start issue. the car made 430/396 conservatively on their mustang dyno.
fuel pressure is constant 58lb, tuner smoked the engine to verify it was free of vacuum leaks.
hopefully the tune and log attaches. log shows cold start and warmup, then I restart it at the end showing how it fires off.
any help is appreciated, i'm new to hpt and at a loss.
its a lq4 bored .030 with flat tops, 243 heads (ported, valve job, pac 660s) ported fast 92mm intake manifold, 92mm nw dbc throttle body, fast 36lb injectors in a bmw e39 wagon
it had a 228/232 .600 112 tsp cam in it and it always started fine, problem started after I installed a tick sns stage 3 cam.
I brought it to a local, well known tuner and they did a dyno tune and some driveability, but couldn't pin point the cold start issue. the car made 430/396 conservatively on their mustang dyno.
fuel pressure is constant 58lb, tuner smoked the engine to verify it was free of vacuum leaks.
hopefully the tune and log attaches. log shows cold start and warmup, then I restart it at the end showing how it fires off.
any help is appreciated, i'm new to hpt and at a loss.
Well known eh. Not all of the necessary tables are available, but ones that can fix the issue are untouched. At least that's what I infer with the lack of other data in your log file.
This is a bare minimum changes file, but should get you started up. Change the .hpl to .htt and import it into your file using the template editor.
This is a bare minimum changes file, but should get you started up. Change the .hpl to .htt and import it into your file using the template editor.
