EGR95

Hello HT member i have a b20b in my 95 honda civic. the problem is that my engine does not rev pass 1000. i spoke to a mech and said that it could be etheir my MAP or TPS. now i know some b20b have a crank sensor for the obd2 modle, but my engine not have it, could that be the problem as well?

the reason i put it in the hybrid section is becaues my b20b has a b16a intake mainfold and it has a GSR aftermarket throttle bodie with the b20b MAP sensor and TPS, and the idle air control valve. And i have a obd1 chip Ecu for the b20b.

NOTE: the mech told me that some obd2 engine have their own timing sensor?

Update: today i start the car and i took off the idle air control valve while the car was runing, all of a sudden the car dies. could that be that my iavc doesnt work?

what do you HT members think?

Update: does it make a difference if the idle air contro valve is obd2. the reason i say this; becaues my engine harness is obd1 and the idle air contro valve have a different volt or responce. plus i think my friend gave me a old o2 sensor.

so what im going to do is buy: ls obd1 o2 sensor, sprak plugs and spark plug wires,and a disturiter rotor. hope this makes a difference.

wish me luck..lol.


update: I rev it up it wont go past 3000 rpms?... what could be the problem?... When i tried to obtain the check engine codes the check engine light just stays on and does not blink. What is causing this.

Update: i have found the problem. i tested the ECU on my friends Honda and it did the same thing, it wouldn't rev pass 3000 rpms. the computer was giving him the same problem.

New topic: The car idles fine and it revs fine, but when i leave the car running it turn off by it self.

Update after three years: At the end of this battle i had found the problem, it was my computer that was not working because it was a chipped po5 for and ls (thats what the guy told me when i bought it) and my distributor was also the problem. the cell code was 8, 40, and 10 i cant remember. i had bought a new distributor and purchase new internals like the coil and the ignitor that was causing all the problems. well good luck people. it was nice working with my Honda hope this helps you out in the future.

Jaker

Make sure your MAP sensor and TPS sensor plugs are not mixed up.

EGR95

okay i will check that out.

how can i adjust my TPS sensor?

unusual71

I thought VTEC and nonVTEC heads had different bolt patterns for the intake manifold? Am I wrong?

Jaker

Yup, but a B16/ITR manifold can easily be modded to bolt up to a PR4/P75/P8R head.

EGR95

well... for the b20b, the port are the same as the b16a and the ITR.

EGR95

yup... your right.

EGR95

well today the mech saw the car, and said the engine was not out of time. the mech only told me that it could be my wiring.

NOTE: i did a wire tuck on my car so i don't know if i put something incorrect. i have not yet check if i switch the MAP sensor and the TPS sensor, but i will check.

what else could it be?... or should i just let the mech diagnose the car to see the problem and pay $50?

EGR95

anybody?..

paton5g

If all your plugs are in the right place, I would start going through your wiring and make sure nothing is grounding out. Maybe you scraped a wire and it's grounding or some wires are crossed. It will be something silly, it always is.

Post some pics of the bay, the tuck, etc..

EGR95

ok i will post some pic today. who knows you might be right.

EGR95

yup

EGR95

update: today i start the car and i took off the idle air control valve while the car was run, all of a sudden the car dies. could that be that my iavc doesnt work?

EGR95

update: does it make a difference if the idle air contro valve is obd2. the reason i say this; becaues my engine harness is obd1. plus i think my friend gave me a old o2 sensor.

so what im going to do is buy: ls obd1 o2 sensor, and see if that makes a change.

EGR95

yup

EGR95

bump-o

Spoon__EG6

Have u check the RPM sensor?

EGR95

my rpm sensor?... i have not check.

update: i put the everything new and it still does the same thing.
my engine taps out at 3k and no more?

soon2bdropped

do you have the tps sensor connector and map sensor connector hooked up wrong. both 3 pin connector and will work for either or so try swapping it around.,

EGR95

okay i will try that bro., but what i did, i went to check my friends harness and i compared colors and they were the same.

Update: i rev it up it wont go past 3000rpms?... what could be the problem? when i tried to get the check engine code the check engine light just stays on and does not blink. what is causing this?...

Jaker

That's an ECU problem. Either the ECU is bad, or the chip is bad.

EGR95

so the Ecu is bad?... what about the disturbiter? could it be a problem if the disturbiter was the obd2 and converted to obd1.

Jaker

No. Have you jumpered the service check connector to check for codes? If you have, and all you get is a solid check engine light, then it's a problem with ECU (or the chip inside). Have you ever run this ECU with that chip before?

If it was a problem with the distributor, or some other sensor, you'd get some codes from jumpering the service check connector.

EGR95

yes. i have jumpered the service check. I only get a soild check engine light. i have not run the ECU with the chip. i got this computer chip from some H-T member and told me that it was map for b20b. so i dont know?

Justinhondapoor

sounds like your dizzy is messed up