This is for my brothers car, Ive got a Sohc zc non vtec in my car and he seen how nice it runs and what I can smoke on the bottle. SO we swapped the same motor into his car.

Got it all finsihed and everything last night, went to bed. Woke up this morning and changed all the fluids. Went to start it up.....

Starts just fine but instantly jumps for 2300 RPM, now Im positive this is really high and idle at that sounds really loud because hes running a 2.5 catless exhaust and it just sounds ******* loud at idle, no shaking at all at 2500RPM

Engine starts to warm up after maybe 4 min and is 1/2 way on the engine temp gauge, perfectly normal, RPM's are now at about 1100 RPM, which to me is still fairly high. The idle screw is turned all the way and this is as LOW AS THE IDLE GOES, cant keep turning it til the car sputters and dies

Now at this 1100 rpm THE CAR SHAKES LIKE A HOTEL SEX BED!!! Is not like disgustingly bad but its just uncomforatable and annoying.

ALSO- when we turn the car off, you hear a sucking type noise for about 1 second

The car is a 88 Si, sohc zc motor, unknown performance header, ebay intake.

Any help appreciated

 

bump for this bitch of a problem

 

the sucking noise when it turns off is just the intake, or its a vacuum leak

and what kinda mounts are you using?

 

Is the throttle cable adjusted, how about the tps sensor. If these are not adjusted properly it will cause these symptoms. Cleaned the throttle body? Umm, usually if its a vacuum leak the rpms will surge on idle not just rev.

 

throttle cable wasnt adjusted because I dont know how lol, dont know about the tps sensor. ANy help with these?

The mounts are stock and were in great shape

 

biddy bump

 

This is for my car, cmon please help, atleast Im not using the first 500 in mods to buy a body kit, I actually bought a swap

ps- dont tell anyone I blew my motor so I had no choice

 

bump

 

bump for me sleeping in like a *****, need some help fixing my car, girl wants to go to the movies, dont make me sit in her riced cavalier

 

i vote tps sensor, sucking noise = intake

ticking = valves screaming adjust me !

 

You have a pic of the TPS sensor?

 

K the TPS sensor means throttle position sensor right?

This would cause my car as soon as I start it up to jump to 2500 rpms and sit there for a bit? Cause the car to shake? Eventually the idle down go down to 1000 rpm but the car still shakes, the idel screw is all the way to the left so PLEASE PLEASE PLEASE tell me what to do now. ANy informative stuff will be praised because Im not the sharpest knife in the drawer with Hondas motors

 

bump

 

 

nobodies got any advise? Changed all the fluids and bled the breaks.

All I need to know is how to adjust the TPS and WHY THE **** IS IT SHAKING

Its unbearable and I doubt its gonna pass safety or emmissions like this

 

search

for tps, and idle problems.

 

Searched and still dont understand what I did wrong, my haynes doesnt even show how do adjust the throttle sensor

 

still my problem

 

search on google. your answer is out there man, just keep looking.

 

I think 2 days of doing nothing but trouble shoot and search google/haynes has left me helpless, came here for help

 

have you checked the voltage with a voltmeter on the wires for the tps?

 

No man, like I said, I have no idea where to start

 

adjust valve lash.

 

ok man


the FIRST motherfucken thing i came to when i did a search on honda tech, which took all of 10 seconds, was this

https://honda-tech.com/zerothread?id=487748

so go to walmart and buy a voltmeter.

 

that car is OBD1 though, heres what I grabbed from it

How to Check the Voltage on your Throttle Position Sensor.
After performing a swap, many times the throttle position sensor on the engine is broken, forcing you to use one from your old d15 or d16 (or whichever you pulled). The Honda TPS has three wires coming from it: green/white , a red/blue , yellow/white. Your primary focus will be on the red/blue wire, as this is the one that sends a voltage to the ECU telling it how open or closed your throttle is. The ECU expects .5 volts to be closed throttle and 4.5 volts to be Wide Open Throttle (WOT). The red/blue wire goes to pin D11 at the ECU. Rotating the TPS will change the voltage, when you take it off, you'll notice that the holes are slotted so it can move. If you are fortunate enough to have Hondata Datalogging or an Apexi V-AFC you can use their inbuilt functions to read the TPS voltage. If you do not have such a device, you can use a Voltmeter or similar device. Ground one lead on the chassis somewhere and use touch the (+) lead to the pin on the TPS (should be the center pin) and measure the voltage. Rotate it until it reads .5 volts, then tighten it down. Have a friend press the gas pedal to the floor and also check that WOT reads 4.5 volts.

_----------------------------------------_

SO, the question was also asked in that thread

just checked the volts on post on the tps...
closed - .5
WOT- 3.83

is that a bad thing ? how can i fix it?

BUT was never answeered

Whqatd do I do if I find that the number are not .5 and 4.5?

Guess I have to go buy a volt