Manual to Auto ECU problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

the bee guy · 03-27-2007, 07:24 PM

Ok, so I have a 95 OBD1 S14 5 spd. Swapped in a 95 OBD1 Automatic ECU to get rid of the Speed Limiter. Everything works fine, except for the fact that when I turn the car on, I have to blip the throttle once or twice or else the engine will stall. Anyone ever have this problem?

This is on a KA of course

babowc · 03-27-2007, 07:44 PM

hm..
although i have a s13, with the same "mod", i dont have any starting/stalling issues.
i DID with idling, however that receeded.. or i just got used to it. :/

!Zar! · 03-27-2007, 10:20 PM

On one s14 I went manual to auto ecu and there was/is no problem.

On the other one when I switched the manual ecu with an automatic one, I discovered the throttle needed to be blipped.

They both were origonal manual cars.

Live with it? Not sure what to say.

Mangudai · 04-06-2007, 06:26 PM

There no other way around it? I thought there was a particular wire you could cut.

los_inc · 04-18-2007, 09:36 AM

try another ecu, also does it idle correctly at 700-800 rpm after you blip the throttle. or does it sputter around.

frsh2fourty · 04-18-2007, 10:28 AM

maybe something wrong with the ecu, or a short...try a different one, or maybe check the wiring harness

b4racing · 04-18-2007, 10:32 AM

i switched a 96 auto ecu into my 98 5-speed. I didn't have any idle issues but i did get a cel for emissions.

!Zar! · 04-18-2007, 10:37 AM

I already answered the question.

Don't bump old threads with guesses.

98koukile · 04-18-2007, 01:40 PM

still have that 5 speed ecu b4racing?

opticfilms · 04-18-2007, 02:02 PM

i Did the same swap on my friends car.it did the same thing but it was the water temp sensor. it would start funny and shoot white smoke.

03-27-2007, 07:24 PM	#1
the bee guy Zilvia Member Join Date: Mar 2004 Location: So. Cal Posts: 247 Trader Rating: (2) Feedback Score: 2 reviews	Manual to Auto ECU problem Ok, so I have a 95 OBD1 S14 5 spd. Swapped in a 95 OBD1 Automatic ECU to get rid of the Speed Limiter. Everything works fine, except for the fact that when I turn the car on, I have to blip the throttle once or twice or else the engine will stall. Anyone ever have this problem? This is on a KA of course

03-27-2007, 10:20 PM	#3
!Zar! Post Whore! Join Date: Nov 2004 Location: North Korea Posts: 14,579 Trader Rating: (27) Feedback Score: 27 reviews	On one s14 I went manual to auto ecu and there was/is no problem. On the other one when I switched the manual ecu with an automatic one, I discovered the throttle needed to be blipped. They both were origonal manual cars. Live with it? Not sure what to say. __________________

04-18-2007, 10:37 AM	#8
!Zar! Post Whore! Join Date: Nov 2004 Location: North Korea Posts: 14,579 Trader Rating: (27) Feedback Score: 27 reviews	I already answered the question. Don't bump old threads with guesses. __________________

04-18-2007, 01:40 PM	#9
98koukile Zilvia Addict Join Date: Jan 2007 Location: Western Mass Age: 38 Posts: 949 Trader Rating: (3) Feedback Score: 3 reviews	still have that 5 speed ecu b4racing? __________________ Just talking about cars, one at a time Horsepower sells cars torque wins races -Shelby

03-27-2007, 07:44 PM	#2
babowc Post Whore! Join Date: Nov 2005 Location: G.NET Posts: 2,659 Trader Rating: (9) Feedback Score: 9 reviews	hm.. although i have a s13, with the same "mod", i dont have any starting/stalling issues. i DID with idling, however that receeded.. or i just got used to it. :/

04-06-2007, 06:26 PM	#4
Mangudai Zilvia Addict Join Date: Jan 2007 Location: South Posts: 656 Trader Rating: (0) Feedback Score: 0 reviews	There no other way around it? I thought there was a particular wire you could cut.

04-18-2007, 09:36 AM	#5
los_inc Zilvia Addict Join Date: Apr 2006 Location: New Joisey Bro. Age: 40 Posts: 826 Trader Rating: (15) Feedback Score: 15 reviews	try another ecu, also does it idle correctly at 700-800 rpm after you blip the throttle. or does it sputter around.

04-18-2007, 10:28 AM	#6
frsh2fourty Join Date: Jan 2007 Location: Houston, Texas Age: 35 Posts: 49 Trader Rating: (0) Feedback Score: 0 reviews	maybe something wrong with the ecu, or a short...try a different one, or maybe check the wiring harness

04-18-2007, 10:32 AM	#7
b4racing Leaky Injector Join Date: Jul 2006 Location: California Posts: 100 Trader Rating: (0) Feedback Score: 0 reviews	i switched a 96 auto ecu into my 98 5-speed. I didn't have any idle issues but i did get a cel for emissions.

04-18-2007, 02:02 PM	#10
opticfilms Zilvia Member Join Date: Mar 2006 Location: Montclair Posts: 265 Trader Rating: (2) Feedback Score: 2 reviews	i Did the same swap on my friends car.it did the same thing but it was the water temp sensor. it would start funny and shoot white smoke.