I was thinking about getting a JWT equivalent ECU, and hearing how they are nearly impossible to get, and the Stillen ones are 800 (WAY out of my range), I wanted to know if anyone here does it.... I assume I would send in my ECU, they would reprogram it and then send it back... How much would something like that cost???
Id also like to know what it does..... I heard from Q45tech that it leans out the mixture, and moves the rev limiter to 7300...... Is that all??
My Q is a TCS, non active, California....
Who does ECU reprogramming?
Hi Elwesso, a co. called technosquare in torrance california does reprogramming. They list 1994 Q45 at $495.00. There no. is 310-787-0874,web site is http://www.technosquareinc.com. Their site tells what their ECU reprogram does. Ask for Danny Lee. Hope this helps
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HeavyDuty
- Posts: 1281
- Joined: Tue Sep 23, 2003 4:51 pm
- Car: 1995 Infiniti Q45
95 Nissan 240SX S14
96 Nissan D21
06 Nissan 350Z Z33
Personal preference, I'd only use JWT. Yes, Virginia, it takes for-e-ver to get it back. (My 91 SE-R w/ 100 shot module took 5 *months*, but that was because I told them "take your time, I'm in no rush")
Best way to do that is to pick up a ecu & tcu from a junkyard, install them in your car & send them yours. That way when you do get yours back it's an unexpected Christmas present.
By & large, a JWT ecu advances the timing to take advantage of 93 octance *exclusively*, bumps the rev limiter, corrects any anomalies in the a/f mixture, (perhaps a little leaner where it can be and/or adds fuel where necessary,) and moves any speed limiter to a speed beyond where the car would ever reach anyway.
Edit: On this application, engages VVL sooner.
Best way to do that is to pick up a ecu & tcu from a junkyard, install them in your car & send them yours. That way when you do get yours back it's an unexpected Christmas present.
By & large, a JWT ecu advances the timing to take advantage of 93 octance *exclusively*, bumps the rev limiter, corrects any anomalies in the a/f mixture, (perhaps a little leaner where it can be and/or adds fuel where necessary,) and moves any speed limiter to a speed beyond where the car would ever reach anyway.
Edit: On this application, engages VVL sooner.
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Q45tech
- Moderator
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- Joined: Tue Apr 30, 2002 3:19 am
- Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl
JWT also changes the tip in throttle retard; When you WOT from standing still the ecu doesn't remove as much advance and the amount it does is added back sooner........makes it feel a little peppier.
With any ecu reprogramming you must make sure the coolant temp NEVER exceeds 194.9F as read and translated by ecu as the lack of knock protection [less knock retard] can be harmful to engine.
With any ecu reprogramming you must make sure the coolant temp NEVER exceeds 194.9F as read and translated by ecu as the lack of knock protection [less knock retard] can be harmful to engine.