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Honda Prelude SI
The Honda Prelude SI was introduced in 1985 with a 1.8-liter engine, but was released with a two-liter engine in Europe a year later. The 1991 model sported a 2.3-liter engine that featured pop-up headlights.
794 Questions
depends on the year, my 96 and 97 are located on the drivers sdie fender well and have 2 large plugs going into them
Where is the ecu on a 1991 Nissan 240sx?
behind the plastic in the passenger side foot space on the right (behind the light) there are 3 screws holding the plastic on
Why do all the lights blink when you get into your 2002 Impala?
Because its a chevy!!
Agreed. Bad ground from body control module (bcm) kills the relay switch. Around $400 at the dealer 4 years ago.
How do you Reset the abs light on a 1993 prelude?
Bring to a shop that has an ABS scanner to either determine problem or clear codes
Where is the starter located on a Honda Prelude?
to the left of the engine under the rear radiator hose. factory starter will have a green housing and its prett easy to get to. http://www.prelude3.com/Engine/Engine.jpg (pic from chris.nl website. this guy is building one sharp lude) here is a pic showing it on a removed engine.
Where is the fuel relay on a 89 prelude?
It should be under the dash and takes 5 mins to swap out, matushita RZ-XXXX it is called the "main relay" which does both the fuel pump and ignition. Assuming this is fuel injected. Just replaced mine in my 86 Si and it fixed problems with the pump not coming on all the time when starting. $70 from the dealer.
What kind of battery goes in a prelude?
The old battery should have the type written on the label under all the crud that has built up over the years.
How do you change instrument panel lights on a 1993 Honda Prelude?
Not sure about your '93 Prelude's procedure for accessing the instrument panel lights. I can speak in general, so you have an idea of what may be the best way to proceed. The instrument panel lights are located behind the dashboard which will have to be removed -- usually. Sometimes, they can be accessed from under the dash in some vehicles -- but this is becoming a rarity. The dealerships must love this, $500 to change a $2.00 bulb. Most dashboards have air bag circuits that have to be CAREFULLY disconnected (see a manual). Sometimes there are 12 or more studs that hold the dashboard to the frame. Sometimes the dashboard is separated into halves and you only have to remove one side. AS FOR MY PRELUDE, it says to disconnect the battery, loosen and lower the steering column assembly, remove the steering column covers, and then: '79 - '82 there a four screws to remove the bezel (clear plastic cover), remove the cluster's retaining bolts and before pulling the cluster out, reach behind it and disconnect the speedometer cable at the back. FOR '83 AND LATER: Remove the instrument cluster switches first by inserting the blade of a flat screwdriver in the groove in the base of each switch so you can pull the switches out and disconnect their wire harnesses. Remove the dashboard lower panel. On some models it may be necessary to lower the steering column for access. Then remove the instr. cluster bolts to remove the cluster. On later models the two rear screws are located under caps at the back of the housing which can be pried out with a flat bladed screwdriver for access. Remove the instrument cluster retaining screws squeeze the tab on the speedometer cable to speedometer collar and detach the speedometer from the cable. Pull the cluster out, unplug the wiring harness connectors and lift the cluster from the vehicle. Be sure you replace the lamps with THE EXACT replacements so they're not too dim or so bright that they burn out in a couple of months.
Is it normal for your 1989 prelude Si to have a hi and low idle at start-up?
If the engine has cooled down, then yes, the high idle occurs first and then as the engine becomes more efficient at burning fuel, the engine slows down. The onboard computer gets information from the two oxygen sensors located in the exhaust. The sensors report to the computer how well the engine burns the fuel and how well the catalytic converter "cleans" what is burned. When the engine is started, the engine is burning less efficiently at lower RPM's. The computer can tell this from the data it receives from the oxygen sensors (and to a lessor extent, the other sensors as well), so the computer is programmed to add more fuel because while cold, the engine runs more efficiently at higher RPM's until the engine is warmed up. This fast idle is about 1750 RPM's and will drop to about 750 RPM's when the engine is burning fuel efficiently (and cleanly). There is some debate about whether a vehicle should be warmed up before driving. Some say the vehicle's computer compensates for the inefficiency of a cold engine, and therefore, can be driven immediately. Further, this idea of driving immediately is thought to be good for the engine by heating it up more gradually and therefore avoiding the problems of damage due to sudden temperature changes. However, there is a line of thinking that the engine was designed to operate at a "warmed" temperature range with consistency, performance, and long life. Indeed, the smog equipment operates better at higher temperatures, and that makes the engine run more efficiently, using less fuel, and costing less money. The amount of waste of a cold engine is 80% higher than with an engine that is warmed up. Furthermore, an engine that is running at high RPM causes the transmission stress when engaged, not to mention the brakes. And the transmission is VERY EXPENSIVE to repair. Since the engine was designed to run at warmer temperatures, I would recommend warming up the engine for about 2 - 3 minutes before engaging the transmission. I do not recommend letting the engine get "hot" though, as this can cause problems when done repeatedly. If the engine was warmed up and shut down for a short time, upon restart, the RPM's probably will not rise more than the normal 750 or 800 RPM's unless subjected to subzero temperatures. Most likely, the normal temperature for your engine, when warmed up, is just before the half-way point (about midway). Bottom-line recommendation, on a cold day (
93 prelude occosaionally won t startthen hours later starts right up?
Can you hear the fuel pump pressurize and stop when it starts normally? Listen for a whine and stop when you turn the key but do not start it. If when it doesn't start for you, listen before trying to turn it over... if you get silence, replace the main relay which is what causes the fuel pump to pressurize the system right before starting. Easy replacement but you have to get the main relay from the dealer. The older Preludes had a problem with the Main Relay due to a car's heating and cooling which developed cracks in the little solder joints on the little PC board. The relay is a little pricey (less than $150) but can be alot cheaper than a new computer. The car's computer is very reliable. Returned computers to manufacturers, claiming to be bad, were bad only one-tenth OF ONE PERCENT of the returns. That means only 1 in a thousand computers were actually defective. The technicians will blame the computer for a lot but in fact it may be a profitable charge and a way for them to get out from under the position of not knowing what is causing the problem. OR, they can replace a $60 relay and then charge for a new computer too. You never know the difference because they fix the "little" problem, charge you for a "big" problem and when the new computer is replaced...it seems to be the fix that was required.
...a small addition to the above post.
You could buy a soldering iron and fix any of the joints which are cracked or have white rings around them.
Crawl under the steering wheel, locate the relay. Pull off the orange clip, use a flathead to carefully release the grey clips from the relay itself.. See if any of the joints on the circuit board have cracks or white rings. Use the iron and a small bead of solder to repair it. If you don't have steady hands or aren't used to working with it, find someone. It's about $15 vs $60-100. It's worked for my prelude, and it's still starting reliably.
Where is automatic transmission drain plug on Honda Prelude?
On the outside of the transmission housing. It is on the passenger side and can be accessed easily if the passenger front tire is removed. The plug is the completely round one with the 3/8" square in it. You remove it by putting a 3/8" drive on it with no socket.
Why does your RPM drop then increase when idle?
More than likely you have a vacuum leak. Check all the hoses, make sure none are torn, britle, and disconnected.
How much engine oil does a 1997 Honda prelude require?
It takes 5 quarts. Make sure you don't leave the old oil filter O-ring on the car!!
What could make your 91 Honda Prelude idle irregular until it gets warm?
Check engine codes. It sounds like you ECT sensor is out of range. Engine coolant temp
New AnswerI am guessing it is fuel injected.When your car is warming up, it adjusts the fuel/oxygen ratio, as needed. These cars should not be left idling to warm up, you should actually get in and drive it.
NEW ANSWERThe word "irregular" has a pretty broad meaning. I assume you're saying the RPM's vary alot instead of being steady. Small variations of a few hundred RPM's probably have to do with "regular" maintenance items such as spark plugs, wires, air filter, vacuum line leak, or fuel filter. Larger RPM movements are indicative of dirty or defective sensors, coil defects, or electrical shorting. The engine is most sensitive to part problems or neglected maintenance when the engine is cold. Recommend: Clean and regap the plugs. Measure the resistance (Ohms) of each of the plug wires. Each wire has a different "healthy" range depending on how long the wire is. The correct values are usually available in the Haynes Manual in the first two pages of Chapter 1 or Chapter 2. Replace the PCV valve (easy and inexpensive). Check the air filter and replace if in use over 18 months or 15,000 miles. Go to Auto Zone and use their vehicle code-readers (for free) to read your engine's computer codes. I wouldn't be surprised if a code appeared regarding the oxygen sensors. If the Ox codes do show up, then the reason for the initial rough idle may be due to the "wrong signal" being sent to the onboard computer (OBD II system). The computer is trying to compensate for what it thinks are signals telling it that the engine is running too lean...and then to rich. This causes the engine speed to oscillate back-and-forth until the Ox sensors heat up and start reading correctly. The Ox sensors are heated electrically before the engine exhaust reaches its usual high temperatures in order to help the Ox sensor to "smell" the exhaust for too much or too little fuel. Write in another question if you want to give a more exact description of the problem. Also, one more thing, warming up a car too much can be bad, but warming up the catalytic converter and bringing your engine temperature up off of the bottom of the temperature gauge scale is OK. The computer and sensors are designed to adjust various items to help the engine run smoothly. A VERY cold engine should not be driven away immediately unless you're being chased by a band of gypsies -- then it's OK to haul off while the engine is cold. The forces placed on the engine are more damaging when the oil is cold and thick, leaving parts unprotected and available for premature wear. Modern engines with proper coolant are designed to operate at an elevated level, not cold. Otherwise, they'd have to put four more radiators in the engine and air condition the engine to keep the temperature down. It's preferable to warm the engine for 30 seconds to 90 seconds to allow the oil to warm up and help the hydraulic lifters operate at optimum. The engine will last longer and save you the fuel wasted when you drive a cold engine. Z-man
REAL AWNSER
Actually I own a 90 prelude and I am a certified mechanic. I would disregard the above awnser (no offense). First off your car is not obd II. If your cars idle is surging up and down from around 1000-2000 rpm or so you should start off by checking your coolant. I know this sounds weird but there is a sensor in your throttle body that needs to be warmed up by the coolant as it heats up. When your cooling system is empty this idle problem always happens. Should you find that your coolant is full, the idle air control valve and boost valve are suspect.
How much is the labor charge to replace an oil pan?
hey it depends on the year/make/model/engine. your best bet is to get that info together and call localshops, ask them for a quick estimate on the labor rate to intall a new oil pan.
Which engine is better a b18 or a b20 over all in performance?
b20- 145 hp- 6800 rpm
b18a or b18b- 143 hp 6800 rpm
b18c1 -180 hp -7400 rpm
b18c5-210 hp- 8400rpm
if you can get ahold of a b18c1 , not cheap, but overall performance, better hp, low end and top end, but depends on budget.
honestly, neither, do what i did. I got the block from a b20b and used a b18c1 head, and wired the vtec i make about 201hp
you have to think about torque.
the b20z makes 133lbs of torque that's 6lbs more than the b18a/b and 8lbs more than the GSR.
Low to midrange torque is what gets you moving from a dead stop.
The final decision of which is "best" varies individually of the person using the engine and their needs.
And yes you can add a vtec head to the nonvtec bseries engines.
But theres no way possible you will make 201 hp(not at the crank and def not at the wheels) on stock bottom end and head. Plus you cant spin a b20vtec to gsr redline so its not going to be the same no matter how you look at it.
What does the knock sensor do on Honda prelude?
It senses engine knock and sends the information to the ecu, which will react to protect your engine from being damaged.
Pwedeng pabasa ng kuwento ni amomongo at si iput-iput?
OO NAMAN, walang tumitigil sayo bumasa nito :p
Will a H22A that come off a 2000 Prelude fit in a 1990 Prelude?
Yes the H22 will fit in a 1990 prelude. It is a very tight fit and requires modification. You would need a new transmission, ecu, new wiring, motor mounts, ect. Before you decide to do this swap you need to really think it through. Its very costly, difficult, and can be troublesome. And remember this is all for a 60-65 hp gain.
How do you change the speedometer sensor on a 1990 Honda Prelude SI?
The speedometer sensor is located on the top of the transmission. It is held on by one bolt. Remove the bolt and gently pull and turn the speedometer sensor and the whole assembly will come out of your transmission.
is that on a manual or auto tranny?
or is it in the same place for both?
