help please. can't rev past 3500

[steverthebeaver]

I am at my wits end. My engine keeps cutting out at 3500 rpms when it gets to operating temperature. I have replaced the plugs, wires, coil, fuel filter, oxygen sensor and MAP sensor all to no avail. Any ideas anyone?

 

[Silver Knight]

not sure what year your car is but have you checked you FITV (if its applicable. 95 and below)? if your not sure where that is, it sits on the back on the intake manifold. i know when i did my ls/vtec swap, i used an intake manifold off a 95 and my FITV was clogged like no other and caused the car to die. i took it out, cleaned it up, put it back together, and and haven't had any problems since.

 

[steverthebeaver]

my car is a 1998, LS, just has a B18 engine. It has an aftermarket air filter on it but other than that no others. And whats a FITV?

 

[hamfacekilla]

my car is a 1998, LS, just has a B18 engine. It has an aftermarket air filter on it but other than that no others. And whats a FITV?

FITV - Fast Idle Thermo Valve

 

[lsdc2]

you can maybe take the idle air control valve out and see if it is dirty (its on the back of the intake manifold close to the throttle body)

 

[mirrorimg]

Team-integra articles
FITV
IACV

 

[chickwithastick]

Sounds like your car is in limp mode. Is your check engine light on?

 

[steverthebeaver]

check engine light is on.

 

[chickwithastick]

You should probably find out the codes so you can fix that.....

Take your car to an auto parts store in your area. The majority of them all offer the scan tool free of charge.

 

[Silver Knight]

check engine light is on.

why didn't you say this in your first post?? that should have been one of the first things you should have listed.

 

[GroceryGettinDB7]

my car was running fine until i around 3k and then it would just fall on its face when my timing jumped....idk something to think about.

 

[steverthebeaver]

sorry, thought i did. my bad.

 

[patti2103a]

Sounds like your car is in limp mode. Is your check engine light on?

X2, check if your low on oil.

 

[steverthebeaver]

so i got the codes read. One was PO335 crankshaft position sensor, P1129 Manufacturer fuel/ air meter, PO172 system too rich, and fuel trim malfunction.

 

[esco115]

check ur cat might be clogged.... my accord gave the same codes and I replaced everything and at the end it was a bad cat... btw it didnt pass 3500 rpms either...