Question about 2003 Suzuki Grand Vitara

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Suzuki vitara v6 will not start but engine check light comes on and i also changed the ecu

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  • Suzuki Master
  • 20,706 Answers

Wow, you did it backwards, $$$$$$$$$$$$$$$$$$$$$
ever do the op guide lilsted tune ups at 60k intervals? miles>? if not why not?
did you try op guide stated WOT test, crank WOT, wide open throttle.
starts now (well it was flooded1) nothing, well, it's below.

watch scotty.
http://www.youtube.com/watch?v=064Ilsz8Fzg&NR=1&feature=fvwp

fuses good. battery at 12v not 10v. , fresh fuel, not 3 years old.
key on CEL glows.
cranks engine, cranks robustly.
you then check for spark. on all 6 COP coils. MUST WORK.
iS spark good or bad. .? ( all gas engines. not diesel)

good spark , yes,. try test fuel. (sold in stores,,,,,, in a spray can)
if test fuel runs good for:
no spark , attach any cheap scan tool, and crank for 5 sec.

http://www.fixkick.com/IGN_timing/no-spark.html#Cops

release key (not off) and see if P0340 or P0355 or close are thrown
YES, bingo and make sure RPM shows at near 300 cranking
if not, the CKP is dead.

A: 3 seconds each try, then the engine is good and so is spark if it sounds really good,..
B starts and runs, must have been flooded or no tune up ever.
C: starts and floods, again, and stalls, trouble shoot flooding.
D: Dead as a door nail. that means its:
1: bad engine, (compression way below 170psi)
2: or lost fueling. check spark tips , wet, is flooding or no spark.'
2a: or low fuel pressure, use a fuel pressure gauge.
0 or 2 psi bad, 20 bad, 30 good, 60 bad. 60 it floods. below 30 it starves. the FSM covers all pump tests, there are 6 tests.
there is also an injector balance test, if fails, the injector is dead or leaks all the time and floods a cylinder.

is this good, ?????
if not do you just want a simple guess?
ok my wild useless guess.
1: not ever tuned up;. "know today as, doing the service points''

Posted on Nov 25, 2013

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Posted on Jan 02, 2017

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ZJLimited
  • 17970 Answers

SOURCE: How to change the fuel filter on a suzuki grand Vitara

Fuel FIlter - Removal

  1. Relieve fuel system pressure.
  2. Remove or disconnect the following:
    Negative battery cable Fuel lines from the fuel filter Fuel filter
To install:
  1. Install or connect the following:
    Fuel filter and tighten the bracket bolt. Note the fuel flow directional arrow. Fuel lines to the fuel filter. Negative battery cable
  2. Start the engine and inspect the fuel filter connections for leaks.

  1. Before servicing the vehicle, refer to the Precautions section.
  2. Relieve fuel system pressure.
  3. Remove or disconnect the following:
    Negative battery cable Fuel lines from the fuel filter Fuel filter
To install:
  1. Install or connect the following:
    Fuel filter and tighten the bracket bolt. Note the fuel flow directional arrow. Fuel lines to the fuel filter. Negative battery cable
  2. Start the engine and inspect the fuel filter connections for leaks.
Fuel filter is incorporated in fuel pump assembly in fuel tank.

Hope this help.

Posted on May 15, 2010

  • 28 Answers

SOURCE: SUZUKI VITARA 2.0 V6 PETROL ENGINE

I suggest either a "Haynes" or "Chilton" repair manual. They are both very informative concerning complete engine tear down.

Posted on Feb 07, 2009

nohaironheed
  • 2 Answers

SOURCE: car repair manual for a 1997 suzuki vitara v6 2ltr petrol 24v

Haynes don't cover that engine. I've found a copy of the H25 engine manual which is similar to the H20 engine we have. If you search for SQ416 in google you'll find a copy you can buy or if you're lucky you'll find a free download somewhere like I did!! :-) It has helped me loads.

Posted on Dec 03, 2009

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Take it to autozone they will check your engine light for free and tell you the problem.

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you must test this procedure. God bless you
When you turn the ignition ON before starting the car, the "Check engine" light is supposed to come on indicating that the engine computer (also could be called ECM, PCM, or ECU) is powered on. If the "Check engine" light does not come with the ignition ON, it's possible that there is no power coming to the engine computer (e.g., due to a broken wire, faulty main relay, burnt fuse, etc.) or that there is a problem with the engine computer itself.

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1 Answer

Suzuki v6 grand vitara will not start but engine check light comes on whilst starting the car was parked for long i also changed ecu


why replace the one most expensive part, that never fails.?
$500 buck guess too... wow !
would not fuses be the first check? and wiring connectors pulled.? or not seated right? (Prev. owners, messing with struff?)
how long is long, 1month , year, decade?
no year stated, wow.
and at least V5 is stated , this is the H25 engine.
I restore old cars now, (retired, so seen it all)
  • bad fuel
  • bad fuel packs up filter , and then packs the 10micron internal to injectors tiny screens. doom.
  • you said no start, but ILL assume it cranks robustly, RIGHT?
  • I then check for spark x6 , if no spark work that.
  • I got spark x6 , so next is fueling, so i use TEST FUEL.
  • It runs for 3 seconds and stops. ah , fuel system failures.

watch scotty here and post your results. GAS engines.

https://www.youtube.com/watch?v=064Ilsz8Fzg&NR=1&feature=fvwp


I have a 2004 FSM and alldata.com account so can get
all facts and all p/n of all parts on car.
fast. and have a car same.


The car has and OBD2 scan port. why not connect a real scan too
there and look for DTC errors, the CEL is mostly USELESS unless dead keyon.
the CEL if for smog.
the Scan tool shows all errors. scan it. why work blind?
also using live data stream, with tool crank engine for 5 seconds
and look for live CMP or CKP sensor errors. ( many so called pros dont even know that trick) check TPS action key on.
Is ECT sensor (and IAT) reading near ambient air temps?
it can starts so those 2 sensors read ambient. if not they are bad.
or disconnected. etc.

post my tests results and year.
get cause fast.
ask.



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1 Answer

Suzuki grand vitara #4 cyl no spark


what engine? DOHC 2.0 Liter? 4 cylinder or V6 and what year.
making a wild guess, on engine, you have coil packs.
on mine 2004 i have 4 coil packs. called COPS.
if one is dead, then its mostly bad.
The ECU/PCM drives the coil pack direct.

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the first thing to check is .
is the gas tank above 1/4?
is there spark. on all 4 to 6 spark plugs.
are all fuses good.
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Wont start,not fuel problem


hi , i think i have the same problem as you, my engine light flashes and i cant get fuel through the injectors but i have fuel pressure and spark. try these two links which might be helpful, the first explains about the mitsubishi ecu used in your vitara, basicly saying they're **** and break down quite early in its life and the second explains how you can run your own diagnostics test using a paper clip and counting the number of flashes from your engine light, you then compare this to the chart on the web site to find your problem.

mitsubishi ecu site www.carelect.demon.co.uk/mitind.html
self diagnostic test www.btinternet.com/~j_holland/pages/diag.html

hope this helps you out, karl hodder

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