Fantastic. Thanks, Bill! On Fri, Nov 26, 2010 at 6:59 PM, Bill Cardell <[email protected]> wrote:
> Jerry, > "no air temp sender" You just answered your own question. No sensor makes > the link assume 100C, which is the limit. As soon as you get into load it > will shut you down. No way around it but installing a sensor. pg52, 1E of > troubleshooting in the tuning manual. > from the installation manual: > > Since the FM ECU’s initial design we have added an intake air temperature > sensor. To utilize this new feature one wire will have to be moved in the > ECU plug. > * > > Note: The intake air temperature sensor is not optional, it must be used in > order for the FM ECU to work properly. > * > > > Bill Cardell > TurboDog's Dad > www.flyinmiata.com > www.fmwestfield.com > orders 1-800-FLY-MX5S > Before you call our tech line (970.464.5600) please check out the > *FAQ*<http://www.flyinmiata.com/FAQ/>section of our website > > > > > ------------------------------ > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Jerry Malsam > *Sent:* Friday, November 26, 2010 3:10 PM > > *To:* [email protected] > *Cc:* [email protected] > *Subject:* Re: It's ALIVE (sort of) > > Getting there... Car starts in 1-2 cranks, idles great, and behaves well > under part-throttle conditions. > > The current problem is that the engine falls flat on its face at WOT. It's > not sputtering and missing; rather, it feels like hitting a hard rev > limiter, and doesn't re-fire until I back off the throttle. I got DataLogLab > fully working -- on a Windows 7 laptop with a USB-serial adapter, no less -- > and was able to pull some datalogs. (DLL file and screenshot attached) > > Checking the datalog, the problem is obvious: Fuel injectors cut to zero at > WOT. Any ideas why? > > Current setup is normally aspirated, '97 block with '99 head, 550cc RC > injectors, Link ECU with 17-Jan-2002 chip (working on getting that updated), > no air temp sensor, no O2 sensor (external AEM WB02 gauge), and rev limit > set to 7200rpm. I haven't tried turning off auto-tuning yet. > > FWIW, I don't care about max performance for now. The goal is to squash any > bugs (while putting some break-in miles on the engine) before strapping on > the turbo and going big. > > On Sat, Nov 20, 2010 at 3:27 PM, Jerry Malsam <[email protected]> wrote: > >> Bill had it -- the TPS needed adjustment, per the FM2 manual. Solved that >> problem. >> >> Got a stickier problem now, and my Google fu is failing, but I was pretty >> sure this had been discussed: >> >> Since the Link was tuned for 550cc injectors, and the car is now running >> stock '99 injectors, the engine falls flat on its face at WOT, so I hooked >> up a laptop to retune fuel. The ignition was in the ON position for a few >> minutes to supply power to the ECU while I messed with laptop's COM ports, >> trying to connect. Then I heard liquid dripping onto the concrete from the >> engine bay. For some reason the injectors had stuck open and the powered >> fuel pump had filled the cylinders and intake with fuel -- gas was dripping >> out the air filter! >> >> So we got all the fuel (about a gallon!) drained out from places it >> shouldn't be, and the engine should be safe in that regard, but why would >> the injectors stick open? I hadn't changed any ECU settings, and the car has >> been left ON previously without incident. >> >> (FWIW, we're putting the RC 550cc injectors back in; I'm thinking the car >> should run okay on them without much of any retuning since we're staying >> boost-free for a while.) >> >> >> On Wed, Nov 17, 2010 at 7:47 PM, Ray <[email protected]> wrote: >> >>> If that doesn't do it, can you collect datalogs? >>> >>> ----- Original Message ----- >>> *From:* Bill Cardell <[email protected]> >>> *To:* Jerry Malsam <[email protected]> ; [email protected] >>> *Cc:* [email protected] >>> *Sent:* Wednesday, November 17, 2010 11:05 AM >>> *Subject:* RE: It's ALIVE (sort of) >>> >>> Check your idle switch setting. Asterisk in the idle window should be on >>> at idle, should go away as soon as you touch the throttle. My guess is the >>> switch is still closed when you have the throttle slightly opened. >>> >>> >>> Bill Cardell >>> TurboDog's Dad >>> Flyin' Miata >>> 1-800-359-6967 (sales) >>> 970-464-5600 (tech support) >>> www.flyinmiata.com >>> www.fmwestfield.com >>> >>> >>> ------------------------------ >>> *From:* [email protected] [mailto: >>> [email protected]] *On Behalf Of *Jerry Malsam >>> *Sent:* Wednesday, November 17, 2010 9:28 AM >>> *To:* [email protected] >>> *Cc:* [email protected] >>> *Subject:* It's ALIVE (sort of) >>> >>> My project Miata is running, though not yet in it's full glory. We're >>> running it normally aspirated for the first 500 miles just to break in the >>> motor before strapping on the turbo. >>> >>> We're having some problems with an apparent fuel-cut under part-throttle, >>> low load conditions. The cut-out cycles about once per second. No stumble, >>> no missing, just a clean cutoff, then as rpm drops it comes back on. The >>> WBO2 gauge shows full lean when this happens. (WBO2 not connected to the >>> Link ECU at this point.) >>> >>> The current setup is a built '97 bottom end with a '99 head, running >>> stock injectors, naturally aspirated for now. ECU is a Link from a year >>> 2000-era FM2 kit, using a MAP sensor. >>> >>> Any ideas as to what could be causing this fuel cut? Doesn't sound like a >>> fuel pressure issue. I can't think of anything within the Link that would >>> cut fuel like that. >>> >>> I'll have some time to play with it this weekend (I'm out of town until >>> Friday), but for now I'd like to give my mechanic (Henry Payne, CCed) some >>> things to check. >>> >>> Thanks, guys! >>> >>> --Jerry >>> >>> ------------------------------ >>> >>> _______________________________________________ >>> Miatapower mailing list >>> [email protected] >>> http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower >>> >>> >>> _______________________________________________ >>> Miatapower mailing list >>> [email protected] >>> http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower >>> >>> >> >> >> -- >> Jerry Malsam >> Legend Consulting >> mobile: 864-386-1130 >> e-mail: [email protected] >> > > > > -- > Jerry Malsam > Legend Consulting > mobile: 864-386-1130 > e-mail: [email protected] > -- Jerry Malsam Legend Consulting mobile: 864-386-1130 e-mail: [email protected]
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