Does any one want to play guess the problem?

Had an interesting one today: The customers complained that the cel came on and the engine stalled. It started right back up and he drove it to us.

I got in and pulled the code p1129 (map sensor high voltage). Started it up and it ran like a corncob and would barely rev over 3000 rpms.

What do you think the problem was? (hint: it wasn't the map sensor)

 

Big Fat Rat in the air snorkle tube? or Rats nest in the air filter box?

 

What kind of shop do you want for? How do you know the map sensor is not bad? I would check and see what's the map sensor is reading... and check for vaccum leak first...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jigoku Z &raquo;</TD></TR><TR><TD CLASS="quote">What kind of shop do you want for? How do you know the map sensor is not bad? I would check and see what's the map sensor is reading... and check for vaccum leak first...</TD></TR></TABLE>

Trust me, he knows his stuff.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondadude &raquo;</TD></TR><TR><TD CLASS="quote"> Big Fat Rat in the air snorkle tube? or Rats nest in the air filter box?</TD></TR></TABLE>
Ew, no. LOL Luckily i've never seen anything worse than dog food filling em up, but not on this one. There's no obstuctions getting air into the engine.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jigoku Z &raquo;</TD></TR><TR><TD CLASS="quote">What kind of shop do you want for? How do you know the map sensor is not bad? I would check and see what's the map sensor is reading... and check for vaccum leak first...</TD></TR></TABLE>
I'm a dealer tech. Key on, engine off, the map and baro sensors showed the same voltage.

Ive seen 3 bad map sensors in the last 16 years. They dont go bad very often so i'm sceptical when i see a code for one.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by philadd &raquo;</TD></TR><TR><TD CLASS="quote">Trust me, he knows his stuff.</TD></TR></TABLE>
Thankyou, still have more to learn though.

 

Anyway, the problem was the timing belt. The cam timing was so far off we couldn't believe it ran at all. Whoever installed the belt on it over tightened it severely causing this damage:

With a new belt, pump and tensioner it ran like a new car.

 

i have a 2004 honda accord dx and it is doing this same thing. but it has not had any timing work done for someone to do it wrong. i read the code and it threw out p1129 as well. i also have a p0122 code constantly. BloxRacing.com used to sell the TPS for $100 but its on back order now and I need one asap... does anyone know where to get one?

 

so i found out what the problem was and why BLOX doesnt sell these anymore... its cause you can get them for a lot cheaper on ebay and it fixes the problem in a jiff