Nistune Forums

I need Help guys! Set-up is as follows: DSM 450cc Injectors Walbro Fuel pump Aeromotive A1000 Fuel pressure Regulator set @ 40psi base pressure Z32 Blow-Thru MAF 87NA ECU with Nistune Anyways. Injector Latency has been set to 1390. Injector Multiplier has been set to 210. Im having a Serious issue! ...

Yes matt mentioned that in his email to me, he said exactly the following: Put the GND from wideband to GND on DLP and put 0-5v to input 1 on DLP... thats it. Copy the lookup table in the C:\program files\nistune\wideband folder... into the DLP AFR1.CSV file.... read the software manual for more det...

The white 0-5v wire from my AEM UEGO was connected to screw terminal #1 on the DLP. The ground on the cars chassis was connected to "GRND" on the DLP. (my wideband is grounded to the chassis as well) I set the Wideband to configuration > COM4 (com3 didn't connect) (DLP IS selected) and I s...

Because I want a full 13-14 volts going to my fuel pump at all times. It's just weird that I have Zero'd out all the values in the cold start maps and it is STILL doing the whole entire "runs ULTRA rich for an unknown amount of minutes" and then its like BAM it reads off my fuel tables ins...

Fuel pump is not ECU controlled, I am controlling the Pump by a relay, and the fuel pressure regulator is not stock, it is aftermarket and there is a direct vacuum line controlling it, so nothing is adjusting these. Fuel pressure is at 41psi AT ALL TIMES, regardless of engine temperature. Matt, I ha...

Regulator is brand new with a built in gauge, holds pressure VERY well.

Car runs fine, its a Software issue or fix, no doubt about it.
Car runs flawless other than this.

Matt!

What k value and Latency are you using??? You need to mess with the Fuel Recover/Fuel Cut Tables... thats what causes the popping... It occurs when the ECU recieves a TPS "on" signal, it will access the fuel recovery and cut tables, as well as the Idle timing table. Good luck. Chris you sh...

Ok this is starting to get annoying. If I turn my car off regardless of temperature, it will run EXTREMELY rich which makes my idle very low and unstable (goes up and down) and will run like this for a allocated amount of minutes (more than 4 minutes) and then all of a sudden it will smoothen out an...

wowwwww Ok so I just owned myself..... me and a friend got the new ECU in, its from an 86 NA Automatic, PERFECT! Anyways, we flipped it over and solder-sucked all the solder out of the 28 pin EEPROM chip, and we flipped it back over and I used a little screw driver and started lifting up on the chip...

Matt wrote:I would use the 1988 ECU and put the dropping resistors in. Less hassle than installing the zener on the earlier one

I just ordered 20 dropping resistors, and already bought the 86 ECU, to late now, lol.

Sounds good.

Looks Like im selling this 88NA ECU, don't want to mess with having to install dropping resistors. 86NA ECU on its way in the mail... I will post up when I get my car running again, thanks matt!

Hey Matt, Ok I just acquired a 88 N/A Federal Automatic ECU and need some Help. Where do you install the Zener Diode on the 87 ECU, since the thread you made appears to only show the 86' year model ECU. Do I just go to a computer store and ask for a "5.1 Volt Zener Diode"??? Also... I have...

Matt... ok if you scroll above to the picture where the datalog is going CRAZY with TONS of up's and down's (jagged edges) in the log itself, as I am playing back the log through that spot of the log... my RPM's in my fuel table and in the RPM box where it shows your RPM digitally is flying between ...

Update! I accidentally got video of my car missing last night while racing! I also figured out EXACTLY whats going on... (whats causing the miss) First off... I have NO dtc's If I remember correctly. Second off... I got a couple logs of my runs. Heres the video of my car missing... Matt read the vid...