I have a '91 Accord EX-R. Every time I drive it within the first 10-15 miles it suddenly loses power and jerks, but the RPMs don't change. It does this for about 10sec., then the engine light comes on and it runs fine untell I turn it off. When I start it again then it does it all over agian. It does this at any speed and any RPMs. I have changed the fuel pump and filter. Has anybody heard of any thing like this? Please help!

 

It would be helpful to know what code you have stored in the ECU.
Jumper the 2 pin BLUE connector ,turn on the key and count the flashes to get the code.
http://members.troublecodes.ne...n.jpg

 

Just wondering, does it get stuck in a gear at all when it is doing this?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by andy1991 &raquo;</TD></TR><TR><TD CLASS="quote">I have a '91 Accord EX-R.</TD></TR></TABLE>

That model doesn't exist.

I'm starting to lean towards a faulty O2 sensor..............maybe.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by riceburner247 &raquo;</TD></TR><TR><TD CLASS="quote">

That model doesn't exist.
</TD></TR></TABLE>

Maybe he is canadian ehh....

btw your avatar scares me

 

Well it's either a fuel or ingition problem, my guess would be fuel since spark really doesn't change that much as the car is warming up, unless it's a cold solder connection somewhere causing the pump to falter. Either way, let's hear the ecu code.

 

Is there any oil in your plug wells? How old are your spark plug wires? I remmeber my old car used to surge when i would give it gas because these 2 things above were faulty.

 

No it doesn't get stuck in gear. If I push in the clutch then it runs fine.

 

Yea, it is a Canadian car.

 

[QUOTE=hondadude]It would be helpful to know what code you have stored in the ECU.

I checked that, and I got 5 flashes.

 

Look at the 'basic' guide at the top of the thread, there is a list of ECU codes if you can't find it here is the link: https://honda-tech.com/zerothread?id=797528

 

Look at the 'basic' guide at the top of the thread, there is a list of ECU codes if you can't find it here is the link: https://honda-tech.com/zerothread?id=797528 (VRDrvr)

I think this will help me.
Thanks for your help guys. Appreciate the response.

 

code #5 MAP - manifold absolute pressure sensor

but i got the same problem b4 too, when i go through 170 KM with the K&N power flow and stock EX, than i brun the O2 sensor and the engine light on and the car jerks and lost power, try to find one second hand o2 secsor to test.

 

Ah, my bad, I was assuming that yours was an auto and it had a problem like mine did, nm.

 

yet u right my car is auto tran