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Yes, this is a regular issue. Your answer lies in the "Enhanced TPS" function of the Maftpro. It will let you set the TPS to 100% at the point you like, making the ECU go into open loop when you want it. Plus it dumps fuel because it sees 100% tps... handy. :-)

I would treat 1.5 to 1.7 khz as the ballpark... fuel cut is determined using a variety of factors including rpm, coolant temp, etc. Airflow plays the biggest role, but AFAIK there is no hard and fast airflow fuel cut number.

It's hard to tell from the logs... is your 'airflow frequency out' approaching 1500hz? The ecu may be pulling a little more timing than you expect at the top end of its load table. Something you can try is filling up with the highest octane gas you can find, putting in some octane booster too...

I'm definitely interested... will just need to make sure my Supra is on the road then.

Here's what my Tunerpro (4.14.0381) looks like... hope this helps. AFAIK, you cannot "shift" colums or rows here. It's not as smart as Excel. You'll need to change the column and row numbers as you see fit, and then manually change the numbers for each affected point in the table.

I suggest you upgrade to 5.22 if you haven't already. I have tried playing with the axes on 5.11 and earlier and it never saved properly. Once you do a download from the 'Pro to Tunerpro, the values would be screwed up... often all the same number for the whole axis. After I upgraded to 5.22...

I also agree a re-torque is a good idea, for the reasons adampecush has listed.

ARP hardware should never be permanently elongated after use. If a bolt or stud is more than 0.001" longer than original, it may have been overloaded and weakened. However, you can't tell this unless you measure the hardware with a micrometer before installation. My personal recommendation is...

In future, please post this kind of question in the 7MGTE Engine Tech subforum. Looks like your front knock sensor. If you have a code 52 that will confirm it.

I have my car in the Province! Man it's great to be driving again :-)

I'm out here now too (just have to bring the Supra over, in may sometime). Near New Glasgow.

Yes you can, however that will make your power and fuel economy suffer under low and medium load... the vast majority of your driving. It works well in a pinch though. The next step is to look at a more advanced piggyback system (the maftpro, for example) which will let you control timing as...

You can verify that PTT tracking (or AFR tracking, for that matter) are off by watching the 'AF Tracking enable' in the ALDL Flags section. Read this: http://www.supramania.com/forums/showthread.php?t=43839 5.0 for 'Part Throttle Tracking Idle TPS' should disable all PTT. It should do this...

Under the View menu, select 'show item lists' and you should get a list of a whole bunch of things on the lefthand side. There will be a 'constants/scalars' list, a 'flags/switches' list (empty) and a 'tables/functions' list. Did that help? lmk

If you post up all your settings, we may spot something out-of-whack.

Enhanced TPS was specifically put in to address this problem. Have a look on the fullthrottletech site, I'm pretty sure there's info there. The two variables to adjust are 'Enhanced TPS RPM threshold' and 'Enhanced TPS Load threshold'. I would offer suggested values, but I've been running...

Make sure your maftpro v-out is not still hooked up to THA. That would seriously mess with the voltage readings. When doing the THA-E2 resistor mod, you disconnect the original v-out wire from the maftpro. Same applies to the HAC voltage divider resistor mod.

And are you keeping your car out of open loop all the time? ;-) That means under 70% throttle and 3500rpm. There are two different forms of afr tracking with the maftpro. When I talk about "afr tracking", I'm referring to the medium and high load tracking. "ptt tracking", or part throttle...

Just to confirm, can you explain how you disabled AFR Tracking and PTT tracking? Also, are you using the maftpro boost control feature? Here are the parameters I would check: - Response page: map enrichment and boost enrichment should be identical. - Response page: map tps min should be around...

The stock tps typically gets around 3.4 volts when the throttle is pushed to the floor. If you have adjusted the maftpro to take this into account, the 4.93 volts you're getting now may have an effect. I can't access my maftpro right now or I'd tell you specifically which parameters to check.