I have a 96 i30 the ecu was replaced the check engine light comes on only for a second when I start vehicle it won't come on if a code is triggered only with my scanner can I retrieve them

10

Asked by Aug 12, 2014 at 02:51 PM about the 1996 INFINITI I30 4 Dr STD Sedan

Question type: General

6 Answers

70,945

The ECU monitors engine and transmission functions. The check engine light will only come on if there's a fault with either the engine or transmission. Other trouble codes for antilock brakes, and body functions are stored in other computers and will not trigger the check engine light. HTH. -Jim

10

Js080816 I'm aware of that if there's a problem it will trigger the check engine light to come on I disconnected the maf sensor and the 02 sensor harnesses check engine didn't come on when I put my bod 2 scanner the codes were there but check engine light wasn't lit

1 of 1 people found this helpful.
70,945

Check the wiring harness connections at the ECU. The ECU turns on the light by providing ground to the bulb. When starting the bulb is grounded at the ignition switch. HTH -Jim

10

Js when I start the car check engine light comes on and turns off once the car turns over it doesn't so I know the bulb the working

10

If I disconnect the wire harness from ecu do I have to reprogram ecu

70,945

That's correct. When you turn the ignition the bulb receives ground from the ignition switch and the light comes on because of the "bulb check" feature. This has nothing to do with the ECU. When a fault occurs, such as unplugging a sensor, then the ECU provides the ground to the bulb and the light comes on. So the problem lies in the ground path from the ECU to the bulb on the dash. HTH. -Jim

Your Answer

I30

Looking for a Used I30 in your area?

CarGurus has 177 nationwide I30 listings starting at $1,700.

ZIP:

INFINITI I30 Experts

  • #1
    Reelin68
    Reputation
    500
  • #2
    KBM1971
    Reputation
    180
  • #3
    westwoodguy
    Reputation
    140
View All

Related Models For Sale

Used Nissan Maxima
265 Great Deals out of 22,818 listings starting at $1,499
Used Acura TL
139 Great Deals out of 4,414 listings starting at $1,995
Used Honda Accord
1,022 Great Deals out of 57,887 listings starting at $1,099
Used Nissan Altima
984 Great Deals out of 77,440 listings starting at $1,000
Used INFINITI Q45
127 listings starting at $2,800
Used BMW 3 Series
1,091 Great Deals out of 33,275 listings starting at $999
Used Lexus GS 300
17 Great Deals out of 679 listings starting at $2,995
Used Toyota Avalon
231 Great Deals out of 16,813 listings starting at $1,499

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.