I just checked near by hoses and they seam to be OK. I don’t have a OBD-2 MAP Tool. But the Honda Accord (98-00) Service Manual states that code (5) could be “MAP Sensor Lower than Expected (P1128)” or “Sensor Higher than Expected (P1128)” and to check for MAP failure it requires me the MAP Tool to check for specific parameters. I just called Honda and they told me the will charge $75 to check OBD-2 which will be deducted if I do the job with them; and we don’t have AutoZone here in PR. The part with tem costs $115 and they charge $85/hr with a minimum charge of ˝ hour. So that will bring the total cost to about $160.00 for the repair when I could do it myself for about half the price and learn in the process. I could check the circuit voltage but Honda has another specific code (3) for that problem “MAP Circuit Low Voltage”.

So, is there is any other way to check for MAP Sensor failure. Let’s say by checking the it's resistance between two contacts or by plugging it out and look at it? I don't want to spend $80 bucks for the MAP and the realize it was not the MAP.

On thing I haven't done yet, is trying to "reset" the "ECM" to see if the problem disappears. I have difficult time doing that since it will reset my Alpine radio in which I have spent some time setting radio stations and CD names.

Also this is probably out of topic but… Can you recommend a OBD-2 reader preferably one that I could connect to my laptop/computer. I know the Honda Scan Tool could cost from between 2K (Small) – 7k (Tablet PC Based; and that’s way too much for me. But on the WEB there are so many custom made models ranging from $100 - $300 .

UPDATE: I just "reset" the "ECM" and the CEL is now off. Do you think this could be an intermittent problem? Or maybe after cleaning connections and mount/dismount near by hoses, the problem is solved? If the malfunction occurs again will the CEL light up again or I just fully reset it for that problem?