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1. Disconnect the etc sensor which is usually found on the driver side. To find it look at the wiring harness. It should be part of the harness. Plus it looks just like the o2 sensor connection.
2. Unplug the sensor it will not hurt the car! This sensor controls the timing by the computer so the engine's timing will not be correct if you don't do these steps.
3. Set the timing light up alot of them hook to the battery and the other connection to the number one spark plug wire.
4. Start the car with the sensor disconnected. Point the timing light at the harmonic balancer and you should be able to see the mark on the balancer. Which is just a goove to indicates what your car's base timing is. You will see a bracket on the engine that has little notches on it and one of the notches will stand out further than the others. Indicate what the timing is currently set at and write it down. Don't think you can remember it and go on.
5. Shut the car off. Loosen the distributer just alittle. Just enought to move it slightly. You will need a offset distributer wrench. NO subsitutes. If you strip the bolt it will not be fun the next time you have to do it. Start the car and slightly turn the distributer till the mark on the harmonic balancer is exactly and the longer mark(top dead center)or 0 on the indicater. Stop the engine and tighten down the distributer being carefull not to move the distributer because it will knock off the timing. Once tightened double check the timing. Just to be sure.
6. Plug the sensor back in.
7.Then you can do one of two things. Disconnect the battery cable for 5 to 10 minutes, or discontect the ecm fuse for a minute or two. This will reset the computer.
8. Road test the vehicle and if the timing is still off check the timing again. And repeat until feel the engine is performing properly.
HELPFULL TIPS
If you have the timing to low it will hesitate and if it is to high the idle will be high and the gas mileage will drop. I always set mine just a tiny bit higher than 0.
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∙ 13y ago
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Will a 350 5.7 from a 91 caprice fit in a 90 camaro?
Yes.
What is the stock timing for a tpi 350?
Knowing the year would really help. But 90% of the 350 TBI engine timing was 0 TDC.
What is 90 percent 350?
90% of 350 = 350*90/100 = 315
Which vehicle is heavier a 90 Camaro or a 90 Chevy s-10?
The Camaro would be heavier
How do you set the timing on a 2000 Chevy Tahoe limited 5.7 90's style?
You must have an OBDII engine scanner to set the timing. It is all computer controlled. Timing light is a thing of the pass/ can not be used.
What percent of 350 is 90?
90 percent of 350 is 315.
90 camaro 350 motor is running hot?
I'd start with the thermostat. Make certain that you have plenty of coolant and that the radiator isn't blocked. After you've checked all that... we'll talk.
How do you set the timing a 1978 Mercury 90 hp boat motor?
Link and sync....check iBoats forum
What is the original price of a tv set if it is marked up 250 percent and sold for 315?
sell = cost + cost x 250% = cost x 350 % → cost = sell ÷ 350 % = 315 ÷ 350 % = 90
90 camaro won't go?
bad transmission?
90 camaro RS 350 tbi swap-need to switch to IROC 350 tpi fuel pump or stick with RS 305 tbi fuel pump?
Its not a good idea cause this will have more pressure., the tbi its a low pressure compare to the iroc -z tpi
Does a 82 Camaro hood fit on a 87 Camaro?
It should fit because they had the same front end from 82 - 90
