Idling issue

[beanfree]

I have the stage 3 TE s'charger with RD headers and 260/268 cams (installed 2 days ago). Prior to putting on the headers the car would die every month or so while I was driving it. After doing the headers I noticed that the car would die just after starting (mostly during the first start of the day) if I had my foot of the gas for few seconds much more frequently (4-5 times a week). Now with the cams the car died about 5 times on the 85 mile highway drive back from the install and about 10 times during city driving over the last two days. It usually dies when I lift off the accelerator when I am stopped in traffic. Twice the stability control light came on indicating that the stability control was switched off.
The odd thing is there is no check engine light. E-mailed Technik to see what they suggest. Any ideas?
Anyone know if there is software out for a 400-410chp 330i and whether it would be compatible with the TE s'charger?

[malina]

You definitely need to tune the software for these cams. Try searching the forum; there's plenty of threads related to idling issue. I actually solved mine replacing exhaust camshaft sensor.

[beanfree]

Waiting for a response from Technik. In the meantime spoke to the BMW tech who did the install and he suggested that I drive the car around and try to reset the DME adaptations by giving it the gas just before it shuts down (when the revs dip-tap the gas pedal) and letting it decelerate in gear so that the cam timings are set.

Car is running much better. Only shut off once in an hour of driving. Am getting a dyno done tomorrow so will let everyone know what the nos. are.

[malina]

Where's the dyno you promised? :impulss:

[beanfree]

Dyno's are posted in the regional new england forum (I am computer illiterate so some fellow fanatics posted them). The mustang dyno comes in different colours so the axes are not clearly marked. The last dyno (July 23) and yesterdays dyno (Aug 29) were the exact same. 289.9 rwhp on a mustang which I am told is at least 10 percent lower than a dynojet. This was in spite of putting the new cams in. However there is timing retardation caused by detonation around 6000 rpm, at least twice, until 7000 rpm. The consensus is it may be due to the solid motor mounts triggering the knock sensors in the engine (per TMS and Nick-a bmw master tech). So am going to put back the rubber motor mounts and re-dyno it (once I get back from Scotland on the 6th of Sept).

Idle is better but still not resolved.

[beanfree]

Switched the solid mounts to the oem rubber mounts. Car seems to have stopped dying. Drops to 500rpm but then gets back up before it dies. Chassis vibration is gone too. Could not get a dyno done on the mustang to see if it is still pulling timing. Am thinking of doing a dynojet dyno done to see what the hp and a/f ratio is.

[malina]

Just do it! I'd love to see your HP/TQ gains from cams and headers :4ngie:

[Activ3]

Switched the solid mounts to the oem rubber mounts. Car seems to have stopped dying. Drops to 500rpm but then gets back up before it dies. Chassis vibration is gone too. Could not get a dyno done on the mustang to see if it is still pulling timing. Am thinking of doing a dynojet dyno done to see what the hp and a/f ratio is.

I think you're in bad need of a tune. My car pulled 276rwhp on a mustang dyno, and you have a lot more mods than me.

does it die, or come close to dying when you're moving slow with no throttle?

[beanfree]

Was dying all the time when I was at low rpm's (I had to blip the throttle to keep it going). Changed the solid motor mounts and now it runs fine. Has not died in two days. Latest dyno information in the thread entitled " August 31 dyno" in the New England forum. Unfortunately it is a dynojet dyno and shows the car running a little lean (could not get it to the mustang place on time yesterday) above 13.5 throughout most of the run. rwhp310 rwtq 253. 93 degrees F. Could not tell if the dme is pulling timing from the dynojet sheet but I would bet it is because around 6000 rpm there is a dip in the air/fuel ration and we saw that a lot everytime timing was pulled on the mustang. There would be timing pulled followed by additional fuel put into the cylinder.

[beanfree]

started dying again. Died 3 or 4 times yesterday.:banghead: Any ideas?

[malina]

You need tuning.

[ken330]

Just install the cams, got issues with TE 260/268 cams.... mine throw out CEL(Misfiring cylinder 1 to 6) All the coils are in good conditions . When idling this will came out.

Cant floored all the way, power get stuck at 3k rpm, only can half throttle till past 3k rpm then can floored it.

Any ideas? Had tried remapping but still cant solved....

[beanfree]

Don't know what to say. Car still dies occasionally (every day but not every trip). Becoming an expert in blipping the throttle after I put the car in neutral because that seems to save it from dying. The killer is no power gains whatsover. ok 0.6 hp gain. George from ICS might have a BMW tuner out in a month and I can get a custom tune done.

Ken: I was told to try resetting the adaptations (not change the actual software program back but just reset the adaptations) to see if it would run better. Have not done it yet. I did not get any check engine lights or messages about coils (by the way are you FI).

By the way new issue, I will be driving along and all of a sudden my DSC shuts itself off automatically and the car starts driving rough. Any ideas?

[MachRc]

damn Im sorry to hear about our problems yo. I think last time I heard it was maybe the lightened flywheel that might vause this in the technik kits.


There was a big threadon how when you hit the clutch at highway speedz, the car would shut off.

mike benvo also had mad problems with the car dies when presing in the clutch or going into netural.

I myself had NEVER had the car shut itself off, but i have a ESS kit.

do you have an aftermarket flywheel?

I think this was what was in common with all the TE kits that were just shutting off.

[beanfree]

As a matter of fact I do have an aftermarket flywheel. While that may be the cause of the shutting off, the dyno's show that the tune for the zhp kits is quite crappy. Between 6000 and 7000 rpm the kits make only 25 hp, detonate and dump fuel in causing the loss. Plus the cams seem to be causing the boost to fall and if the cams were designed well there would be on overlap so that the boost would not fall. Kind of disappointed with this whole TE situation. They have still not called me or e-mailed me and this excuse about them moving is quite pitiful.

[MachRc]

damn bean so sorry to hear that man. They have finished moving like 2 weeks ago and awaiting a dyno permit from the city.

they have RDsports e92 in there getting big upgrades and stuff.

as for my asa kit, asjborn has let me know its software and injectors will compensate for up 350 rwhp if I remember correctly. its a non-zhp

Ive added headers, smaller pulley/belt , and no CEL, no studders, just getting used to the earlier spool of the 170mm pulley.

what bothers me is that your not the only one getting ignored by technik's email system/ ive talked to many memeber on fanatics frantically trying to reach them sometimes.



but..

Ive seen alot of technik cars with over 350rwhp and no problems.

I dont know if they were zhps

but alot, majority of the cars there dont run into this problem.. maybe its a zhp thing?

maybe more TE kit people should post their experiences here.

[steelgrey330ci]

best thing I found to do was this,

push in the clutch and just tap the gas then release out of gear and your car wont die

[beanfree]

That is unbelievable. I just started doing that (blipping the throttle after putting the clutch in) and found that it worked great. Still would like to get the idle bumped up to 1000 rpm. Any suggestions on who to take it to for that.

[steelgrey330ci]

I don't know cause I got my software done with the kit and mine is at 900rpm

but crazy how it works it almost makes me think why if we do that it will not die but if you don't it does.

[SinCityE46]

I had this problem.

It was due to LOW RPM map Air/fuel timing.

You need to get an update on technik software or have someone out there tune it for you. Going to run you around $300-600.

[steelgrey330ci]

When I got my software done last from them when I went to the TM15 unit it never fixed anything.

Sincitye46 did technik do that for you or did you have someone local do that for you. thanks

[beanfree]

Would gladly pay $300-600 to get the idle issue fixed. The question is to who? Forget Technik (they don't answer calls). Any other ideas. Do you think ESS would have a solution. I noticed they have a 400 hp kit. Wonder if they are using the 30# injectors with that kit? Will call them tomorrow and find out. Anybody have any other ideas or people we can contact to resolve this?

The killer (no pun intended) is that the car is running really well (except for it's uncanny ability to try to kill me when I am going slowly :banghead:).

SinCity are you supercharged and who fixed your software map?

[SinCityE46]

When I got my software done last from them when I went to the TM15 unit it never fixed anything.

Sincitye46 did technik do that for you or did you have someone local do that for you. thanks

someone local.

[SinCityE46]

SinCity are you supercharged and who fixed your software map?

once upon a time. :bawling:




also, injectors can cost idle issue too. You might have smaller or bigger CC then needed? Either way it needs to be programed to that CC spec.

[beanfree]

My injectors are maxed out. #30 which are good for between 372 and 384 hp max (I am around 385). Dyno shows a/f ratio has leaned out since addition of the new cams to mid 13's from mid 12's. Just want the idle raised. Will see what ESS says today.