95 Spyder VR4 Jester Chrome ECU Tuning (weird idle/part throttle behaviour)

[Jimvr4]

As far as I know every Spyder tuning with Chrome has had this issue. I fixed mine in the adapter harness since I have the Clone ECU, not Jesters Chrome one.

[D.I.P.]

Well, i rushed home after work today to beat out this blizzard headed my way here in NJ in order to have a bit of time to work on the car. I am happy to report that these issues were in fact caused by the Jumper settings. All i did was switch the jumpers from Cali-spec to Fed-spec, started the car and it immediately idled better. I then took it for a test drive and everything was running smoothly just like it was with the stock ECU. So Jim, i think you are correct in saying that just about every Spyder owner has had this issue. I think it would be a good idea for Jester/3SX to put the info out there on their websites so that folks don't keep having this kind of frustrating experience.

[Jimvr4]

Yes, it's amazing what a difference in having a properly working closed loop It takes about 20 minutes to warm up completely and then every 4 minutes the trims will adjust. Monitor them and they should settle in the +/- 5 range.

[D.I.P.]

Now that i got it running again i need to tackle another issue... Wideband data logging. I wired my AEM UEGO 30-4110 per the instructions on chromedecu.org (AEM 0-5V wire to pin 77 in my 95 wire harness) but it does not seem to be working. When i try to log it in Evoscan it just shows a consistent 10.0723 value and doesn't change at all no matter how long i drive.

[Unlogic]

I have the same issue with my ECU the WBO2 reads a static value. I never managed to solve it, instead I connected the WBO2 to my LCDBC.

[D.I.P.]

Well I got the WIdeBand data logging figured out with Adam's (Jestersdead) help. Now everything seems to be working as it should. Time to start logging and logging and logging...

[sohcstealth]

Well I got the WIdeBand data logging figured out with Adam's (Jestersdead) help. Now everything seems to be working as it should. Time to start logging and logging and logging...

What was the issue with the wideband?

[D.I.P.]

I don't think I had the wire/pin set in the plug deep enough. I ended up removing it re-pinning the wire and re-installing it into the ecu plug. I used the end of my multimeter lead to help push the pin real deep into the plug. Started her up and Evoscan was now reading my WB afr as it should.

[Jesters Deadd]

Hey good info here.
DIP, can you do me a favor? Can I get a picture of your silver model plate beside your brake booster?
Also can you post your vin?
And the part number of the oem ecu?

[D.I.P.]

Here you go...

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