2002 rav4 2.0; when engine is hot doesn't idle and give hard start: tps,GDI,egr,fuel pump,spark plugs and coil are all okay..when its cold first key the engine is fired up

not told at all when did this car last run great ?

• last decade?
• year?
• or last week?
• or you never saw it run right ever, great questions no?

well it is 34 year old car ALL OLD CARS ARE MONEY SINK /Pits!

I'D start with a full compression test , tell me why spend a fortune on all that stuff and the engine is bad.? (but rust fee car I WOULD)
EFI can not run a dead or bad engine, weak yes, dead no.

john above thinks your car is TWB throttle by wire, sorry joHn NOT in 1989, IT HAS NO TBI HERE OR IS IT TWB.
IT IS JUST AND GOOD OL;' THROTTLE BODY.
compression tests
what is idle speed no 800 or 400 rpm?
vacuum test if vacuum bounces at idle the valves are burned or cam is timed worn or even distributor bad.
at least use new distributor new cap, rotor and wire sets and spark plugs gapped to spec do not ..0.045:" as sparks come new in the box,do not do that.
I cant hear the engine run and sound bad. nor see the tachometer.
to see if cold and hot rpm are correct.
The TB (unlike Johns joke twb) is just TV and a side mounted tps and a IAc VALVE THAT MOST TIMES NEVER EVER LASTED THIS LONG. IAC AIR VALVE IS FOR IDLE.
THE ISC IS A 2 WIRE, IDLE CONTROLER FOR HOT ENGINE, MEANS NORMAL. AND THEY LOVE TO GUM UP.
JUST CLEAN IT.'
IF YOU USE A TIMING LIGHT YOU CAN SEE SPARK TIMED WRONG, AND MUST BE SO.
THE ORDER, GOOD ENGINE, GOOD SPARK AND LAST IF GOOD FUELING.
NO INJECTOR CLOGS OR LEAKAGE.

IS THE CEL LAMP ON KEY ON? THEN TURNS OFF RUNNING
OBD1 IT IS THEN.
AND HAS JUMPER FOR BLINK CODES THEN.

IF I DRIVE ALL OVER TOWN HERE THERE ARE NO 1989 ON THE ROAD NOW. SUPER RARE TO SEE EM.
DUE TO THE MONEY PIT.
HOUSES AND POWER BOATS ARE WORSE.

WONDERING THE DIESEL BIT (GROSS MISFIRE? OR IS BACKFIRING? TO THE AIR CLEANER?) OR IS HOT RUNNING PING>?(KNOCK/DETONATION)?
IF IT PINGS?, 2 CAUSES. (TOP) DISTRIB TIMED WAY TO FAR ADVANCED (BTDC TOO FAR) OR EGR BAD IF PINGS UP HILLS.
EGR IS OFF LINE AT IDLE IF NOT IT IS HOOKED UP ALL WRONG.

just TB here, the water heated and one part is IAC air.
when cold it provides its own cold start and cold running idle air and thus speed (RPM) there when hot , the ISC electric idle speed takes over,and runs hot rpm, if either one fails idle is way too low.
and surges and shacks hard, and even stalls.
if idle too low not 800rpm or more.then hold the throttle and make it idle say about 1000rpm if engine sounds good the BINGO.
not told who car drives. misfires at all speeds and loads?
tell the full story and get 10x better answers.
and do not listen to new car answers above TBW,.
period there is no electric motor on this TB below at all
also look for bad vacuum hoses or connect up wrong.

no car told maker or model or engine size.
there are lots causes that, hard starts
if spark good and strong and even HV spark wire sets fresh.
the short list.

1. bad fuel
2. too much fuel cranked and floods
3. IAC bad, idle air valve stuck and wants to flood cold.
4. cold idle is the big clue, where too low. IAC failing
5. EGR sticking open at idle. possible.
6. if you press gas Pedal, at 5% (about) and starts easy and likes that until it worms up that means the IAC is dead.
7. I stop here lots more, no car told.

all cars modern EFI is it EFI> have IAC and ISC valves 1 or both.
and if stuck idle fails. hot or cold.
no car told why post like that 100 year of cars and 10,000 engines.
????

Nevr change things til u kno cure. Cud hav a vacuum leak like a bad egr valve. Distributer cap may b worn inside or the plug wires. Idle air or tps mite b worn. A component is gittn hot from age n needs to cool

engine wont start cold or hot could be fuel problem.check for fuel or spark.try doing little troubleshooting make sure sparkplugs and wires good condition.fuel filter been changed.engine need fuel and spark ignition to run.turn ignition on listen for fuel pump operation in fuel tank if no check fuel pump fuse and relay.if fuse relay okay.problem could be the fuel pump but first use code scanner look for PCM, CRANKSHAFT POSITION SENSOR,CAMSHAFT SENSOR AND DISTRIBUTOR IGNITION FAULT CODE.MAKE SURE YOU HAVE FUEL INTANK I SEEN THAT HAPPEN BEFORE.

okay, that info is helpful i would have said a coil test but okay with a new distributor it should be good, lets look at the egr valve, with a cold engine start it up and feel the egr tube, this tube feeds exhaust to intake, it should not get hot right away, if it does then egr is open causing misfires, also remove vacuum line from the egr valve just in case it is a bad vacuum solenoid , there should be no vacuum to this vacuum hose with cold engine at idle. let me know the out come.

Find a shop that does scope meter testing. They will be able to give you coil's output.
You may have a faullty plug wire . Take a spray bottle full of water spray it on spark plug wires and see if the engine decreases in idle. If so you need new wires.

With regards to eng lite. have ECU scanned again may be a different code. Autozone does this free of charge.
Did you clean out the carbon on the EGR passage before you put new EGR in?

Check to make sure you're getting power to the coil when the key is turned. You may need a new ignition switch.

A FAULTY FUEL PUMP.IDLE SPEED TOO LOW.A STUCK OPEN EGR VALVE AND PVC VALVE.YOU WILL HAVE TO DROP FUEL TANK TO REMOVE FUEL PUMP.

have you replaced coil pack? Check EGR passage through upper mainfold and make sure clean. also make sure EGR valve not stuck part way open. Also check crank and cam sensors along with MAF.

First, make sure all your ignition components test out good; ignition coil, spark plugs, plug wires, power transformer, and even your alternator and battery.

Next, check your fuel system; fuel pump, fuel filter, fuel pressure regulator, and even your fuel injectors. Many times a clogged fuel filter can cause idling and hesitation problems. Also check for any restricted air passages starting from your air filter, all the way to your throttle body and EGR valve.ry checking the tps sensor (throtle positioning sensor). if the tps sensor is not working right when the engine warms up the tps sensor will not allow the fuel pump to pump as much as it needs to keep the engine running. The reason it only happens when the engine warms up is because the throttle is chocked when the engine is cold so it does not take as much gas to run it.