20 Most Recent 2003 Suzuki Aerio - Page 8 Questions & Answers

NO PROBABLY HAS BAD IGNITION LOCK CYLINDER IF STEERING WHEEL IS LOCKED THAT SURELY COULD CAUSE IT

1/ Rusted Parking Brake Cables-that don't release2/ Contaminated Brake Fluid -fromnot flushing every 3 years,thus rustedwheel cylinder piston, in rear on drum brakes,or same on rear disc caliper3/ Collapsed Rubber Brake Hose4/ ABS System Issues5/ Worn Out or Broken brake parts6/ The most common cause of any BrakeProblem is -- Neglect-drive it & forget everythinguntil you have a problem

it should be in the under hood relay/fuse block

Has anyone checked the freon level in the system ?

automatic.?first learn now to tell, if the engine lacks power ,or the tranny is slippingthat is easy.1: increase speed, does RPM(tachometer) rise faster (independant) of road speed. (that is called, trans slip.)2: the trans dont slip. so the engine rpms stay low (gears work) and the engine has no power.if the engine has no power, fix engine.The trans is very complex. if it messes up post that and what it doesunder all driving and gear selecton modes, and hills and flat ground.why pick the air flow meter, MAF , the most expensive part of EFI sensors. why guess there is a very simple test for the MAF, just ask.its all in the FSM or here.http://www.scantool.net/software/alldata-diy-1-month-subscription.html

$4https://suzukipitstopplus.com/category/3-suzuki-service-manuals.aspx

is that a question or a statement,you left out, where, why, how, in the question? what, is, how come.? bla bla.no such thing. (only on air planes) LOLthere is s sensor ground speed called vss. why do you ask, state problem and your guess. The car has EFI and has many sensors.Mass air flow is one , called MAF.measure flow by weight (mass)some old euro car did have VAF, volume flow. but not in usa.

it might be , in the manual. seen here.https://suzukipitstopplus.com/category/3-suzuki-service-manuals.aspx

how do you know that?fuel pumps can fail for 2 other reasons.no 12v to it.or regulator on fuel rail stuck wide open(bad)alldata dot com has the steps.

brakes locked is a very huge danger do not drive car, the light on means ,just that the brakes are under pressure.the Master cylinder must not have the push rod set too tight, (has a spec. read the FSM manual)or it blocks the relieve port in the MC and all 4 brakes lock.a true man killer that..... get pro help now, brakes are nothing , to risk your and others lives when damaged)

there are 2 fuse boxes.both have covers and wordsor are clearly marked.did you loose that cover?Suzuki sells it, just by one.or better, get the free operator guide for your car, and it in the book.the box changed 6 time in 20 odd years.

the engine can not idle right for vast reasons.wont idle, does that mean 1: stalls.?2: or wont regulate, hot.3: or both.So , no DTCs, no cell lamp glowing , running?you replaced some very expensive parts, by guessing?checking fuel pressure costs $20 for the tool. do you have a $50 scan tool? if yes, you can scan all sensors.and see if the sensors all look good. do they? did you buy a used maf ,or new suzuki maf $$$ or the china clone.most of the clones are no good. best is , used, and from Cardone.(rebuilt by pros)the China clones , read wrong, the ECU does not know its wrongbecause it is not stuck at 0 or 5v. so assumes its right and is wrong.with a scan tool you can see the MAF read wrong. do you?what i do is plot TPS angle, RPM and MAF output and log that.then at home read the values.the #1 reason for stalls is leaking EGR. ever clean and service it?

ill add guesses. stalls. does it restart, easy????1: lost electrical power to the EFI system.2: lost fuel pressure3: lost spark , lost fuel injections.4: egr leaks, (clean and get it to close, it must close at idle or the engine will stall. 50k mile service point in the manual.

all or a few. ? there are warning lampsand lamps that glow with head lamps onare you saying really "all" are dead. every one.if yes, blown fuse.any thing else dead, engine, radio, dome light, brake, blinkers, etc?

state the engine symptoms , cold and hot running??.,my guess. is that it runs badly. then with obd2 scanneryou see what?. post the readings. my guess, is it never hits closed loop, hot.the rear 02 is not a factor the front controls hot running AFR. (air fuel ratios) sensor B1S1 controls AFR.if it dont hold closed loop, we cure that first. one way is to be sure fuel pressure is at spec. PSI. these are the ropes:1 good motor, (compression at spec)2 Good spark and timed perfectly 3 last is fueling, check water temps. with obd2 180-200F? and holds there?my scan tool , i can graph the front 02 , in real time. can yours?if yes you can see if it swings from .2 to .8v does it , up to 6 times per second or is the signal just flat lined, High or low. , if yes, we work thatcause next. stuck low is lean, stuck high is rich.there are tests to do next depending on the sensor readings ,not posted.is car engine modified, with CIA junk? cold air malarkey?no exhaust cracks near, B1S1 02 sensorno DTC'S stored, not one?loss of powerflooding , misfirewont start , etc.