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  1. #1
    Veteran Member Three Rings Cactus Avant's Avatar
    Join Date
    Dec 15 2012
    AZ Member #
    105863
    Location
    NY

    Help please! Car won't stay running!

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    So I have been gone at school, and my car (1999 1.8tqm AEB) had a dead battery. So I jumped the car, drove it for a few minutes, then it started sputtering and died. Tried to jump it again, ran for a few minutes, sputtered, and died. This keeps happening, and sometimes I can't get it to start at all. I've been searching for answers online for 3 days now, and can't figure it out.
    I have replaced
    Fuel filter (1k miles ago)
    Spark plugs (2k miles ago)
    Alternator (10k miles ago)

    I found a fuel injector had a crack in it, but I just replaced it, and I am finding no difference. Check engine light is on, and these are the codes Im getting:
    P1602 terminal 30 voltage too low
    P1136
    P1476
    P0300
    P0301
    P0302

    I'm beginning to think it may be the ICM, or bad coils? Is there a way to check? Any ways to easily check the fuel pump? I am super confused. The car smells like gas so I am assuming it is getting fuel. And when I changed the fuel injector, there was definitely a lot of fuel.

    Anything would help greatly! Thank you in advance!!

  2. #2
    Veteran Member Three Rings LA4's Avatar
    Join Date
    Jun 16 2013
    AZ Member #
    117255
    My Garage
    E39 540i, NA Miata
    Location
    Pennsylvania

    The fuel pump should make a noise when you turn the ignition on (not starting the car, just flipping the key to on.) It's audible if you stand outside the car near the trunk.

    I guess ICM. You could try swapping a junkyard one, but you don't really have a way of knowing if it's good. I may have one lying around in my spare parts bin too...... Although if that's the problem I'd just delete it and upgrade to the newer coils, it's what I plan to do when mine finally shits the bed.
    1998.5 A4 Quattro 1.8TQM AEB
    Stage 1 GIAC, 710N DV, ECS Snub Mount, ECS SS Brake Lines, A8 Rotors, Bilstein Sports/H&R Springs

  3. #3
    Veteran Member Three Rings Cactus Avant's Avatar
    Join Date
    Dec 15 2012
    AZ Member #
    105863
    Location
    NY

    Now I put in new plugs, checked the ICM and its good, and now I'm just super confused. Anyone have any ideas?

  4. #4
    Veteran Member Three Rings Cactus Avant's Avatar
    Join Date
    Dec 15 2012
    AZ Member #
    105863
    Location
    NY

    Okay guys,
    Changed the spark plugs
    New fuel pump
    New fuel filter
    New fuel pressure regulator
    Tested ICM
    Changed crank pos sensor
    Tried running with MAF unplugged
    Changed coolant temp sensor
    Changed air intake temp sensor

    The car will start, run for a minute or so then die. Any ideas?

  5. #5
    Veteran Member Four Rings Seerlah's Avatar
    Join Date
    Dec 05 2007
    AZ Member #
    23104
    Location
    A place between here and there

    It runs, which is a good sign. Next, you need to monitor a few things before it dies:

    Fuel pressure
    G/S MAF readings
    Bettery voltage
    Coolant temp

    In a nutshell, you have combustion. Now you need to figure out which of three (spark, fuel, and air) is causing you to lose that. Spark and fuel is what you want to be concentrating on, since it sounds safe to say you have compression (should check this too, regardless). Things listed above is what I can think of for spark, fuel, and air mass of combustion to check. Hopefully others chime in with some advice.
    I hate it when my car acts like a little bitch, treating me like a bitch

  6. #6
    Veteran Member Three Rings Cactus Avant's Avatar
    Join Date
    Dec 15 2012
    AZ Member #
    105863
    Location
    NY

    Problem solved:

    I did the 2.0 coil conversion/ICM delete, and now it stays running! Its not making power from boost though.... I'm hoping thats just the old gas/Heet in there now

    Weird because the car ran really well when it did run before. And the ICM tested good. I don't know, but I'm so excited it runs again. First time driving in 3 months

  7. #7
    Veteran Member Four Rings Seerlah's Avatar
    Join Date
    Dec 05 2007
    AZ Member #
    23104
    Location
    A place between here and there

    My car has sat for like a month and a half. Used to stuff like this. No battery, needs t3 gasket (picked up a while back), and pure procrastination is a bad combination. Hahaha!
    I hate it when my car acts like a little bitch, treating me like a bitch

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