I am looking at getting headers/extractors for my car. What is the sensor on the current stock manifold and can I do without it? Also can I remove the air flow sensor and trick the sensor to alow the motor to still run and operate?
Hi U DIE here again, I ran the engine at high speed changing back to 3rd and with revs while operating with no filter or covering. The motor ran absoulutly great for 50 kms then I got home. When I went to go again 1 hr later the car would barely start. I got it going but its running really rough, only goes good at high speed and is now smoking at exaust. Have I damaged the MAF sensor? You did warn me!
Hi U DIE here again, I ran the engine at high speed changing back to 3rd and with revs while operating with no filter or covering. The motor ran absoulutly great for 50 kms then I got home. When I went to go again 1 hr later the car would barely start. I got it going but its running really rough, only goes good at high speed and is now smoking at exaust. Have I damaged the MAF sensor? You did warn me!
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The sensor on the manifold is an oxygen sensor, which I don't believe you can do without, unless you don't mind a check engine light being on all the time and your car burning a lot more gas than it should. The mass air flow sensor is a definite no; this sensor is one of the most important ones in a fuel injected engine. Have you ever tried to drive a car with a bad MAF sensor or broken intake piping after the sensor, it's hardly driveable... Unless you can find some kind of aftermarket engine computer reprogramming/replacement kit (which i doubt exists), i do not recommend this at all...
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I would only do this with a 92-93 EX Accord motor and keep it OBD0. I did this with no CEL codes, works perfect.
Swap the following parts from your old 91 engine to the 92-93 EX motor:
Intake manifold Engine Wiring Harness Distributor Exhaust manifold (header) Air Conditioner bracket and Air Conditioner Compressor
Keep your current ECU in the car. Put your transmission on the motor before you drop it in.
If you go to the 94-97 / 2.2 you will run into some additional sensors, crank position sensor, etc... with that motor since it switches over to OBD2 in 1996.
P1133 - Insufficient Switching on a Pre-Cat sensor, Bank 1 Sensor 1
Is the exhaust stock? or do you have long tube headers?? The long tube headers cause the heat-up time on the o2s to be longer (causing the switch time to take longer (p0133/p0155)).
Otherwise - insufficient switching of the o2...exhaust leak possibly near the sensor... sometimes a blown head gasket can cause this code too.
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Hi U DIE here again, I ran the engine at high speed changing back to 3rd and with revs while operating with no filter or covering. The motor ran absoulutly great for 50 kms then I got home. When I went to go again 1 hr later the car would barely start. I got it going but its running really rough, only goes good at high speed and is now smoking at exaust. Have I damaged the MAF sensor? You did warn me!
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