'95 Passport sluggish acceleration on hwy-fuel? tranny?

7 messages, Last post on Oct 22, 2009 at 10:26 AM

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#6 of 7 Re: Honda Pssport power loss HELP!!! [01dodge4d] by rainynorthwest May 15, 2009 (3:09 pm)
Replying to: 01dodge4d (May 05, 2009 10:58 am) 01dodge4d I have a 94 Passport and am having the EXACT same problems as you are having. I was going to replace the ECM...but it sounds like thats not going to work. I have also noticed the strong smell of exhaust under the hood near the manifold or what appears to be the egr. I was thinking maybe I had an exhaust leak and fresh air was sucking back into the exhaust then down a few feet to the o2 sensor...thus causing a lean mixture code...the ecm would then tell the injectors to dump more fuel in the engine. Thats why when the check engine light goes on and it goes into the preprogramed ecm fuel ratio it seems to work (or at least work better). Have you had any luck fixing it yet? Replies to this message: 5tevo (Oct 22, 2009 10:26 am)
#7 of 7 Re: Honda Pssport power loss HELP!!! [rainynorthwest] by 5tevo Oct 22, 2009 (10:26 am)
Replying to: rainynorthwest (May 15, 2009 3:09 pm) I'll be darned, I thought I was the only one with this problem as I too have a 1995 Passport that once in awhile runs very rough on the highway puffing black smoke out the exhaust burning tons of gas then out of nowhere the engine light comes on and it runs fine until I let the speed drop below 65 thereby the engine light goes out and runs rough again....... I took this to a Honda dealer and they replaced the oxygen sensor and it ran great for about a year and a half. It's in the shop right now having many hoses replaced under the manifold (wait till you that happens to you all) I also smell a lot of fuel coming in through the AC vents and I guess there is a charcoal canister that needs to be replaced. I am crossing my fingers that this will cure the engine light trouble as well. Anyone else have any luck?

#6 of 7: Re: Honda Pssport power loss HELP!!! [01dodge4d] by rainynorthwest; May 15, 2009 (3:09 pm)

Replying to: 01dodge4d (May 05, 2009 10:58 am)

01dodge4d

I have a 94 Passport and am having the EXACT same problems as you are having. I was going to replace the ECM...but it sounds like thats not going to work. I have also noticed the strong smell of exhaust under the hood near the manifold or what appears to be the egr. I was thinking maybe I had an exhaust leak and fresh air was sucking back into the exhaust then down a few feet to the o2 sensor...thus causing a lean mixture code...the ecm would then tell the injectors to dump more fuel in the engine. Thats why when the check engine light goes on and it goes into the preprogramed ecm fuel ratio it seems to work (or at least work better). Have you had any luck fixing it yet?

5tevo (Oct 22, 2009 10:26 am)

#7 of 7: Re: Honda Pssport power loss HELP!!! [rainynorthwest] by 5tevo; Oct 22, 2009 (10:26 am)

Replying to: rainynorthwest (May 15, 2009 3:09 pm)

I'll be darned, I thought I was the only one with this problem as I too have a 1995 Passport that once in awhile runs very rough on the highway puffing black smoke out the exhaust burning tons of gas then out of nowhere the engine light comes on and it runs fine until I let the speed drop below 65 thereby the engine light goes out and runs rough again....... I took this to a Honda dealer and they replaced the oxygen sensor and it ran great for about a year and a half. It's in the shop right now having many hoses replaced under the manifold (wait till you that happens to you all) I also smell a lot of fuel coming in through the AC vents and I guess there is a charcoal canister that needs to be replaced. I am crossing my fingers that this will cure the engine light trouble as well. Anyone else have any luck?