Wont idle no engine code - 1998 Pontiac Bonneville

RESET WONT SOLVE YOUR PROBLEM.A REPAIR MIGHT!!!WHAT IS YOUR ENGINE CODE LETTERS??

check the engine crankcase breather for air leaks little rubber elbow rear of inlet manifold. plus oil separator under fuel rail

tps sensor to start with and if not just do it manually

Well the code is for a problem with the EVAP system which is what the computer uses to vent the gas tank. I doubt that would cause the engine not to idle but anything is possible.
You may have to get the throttle body checked, it could be gummed up or the idle air control valve may not be working.

Code 37 is torque converter clutch solenoid failure. Transmission wont shift in and out of overdrive.

Check for codes first. Could be your egr valve is sticking. They get carboned up.

Lets start with figuring out why the check engine light is on. You can get a blinkout of the the code by switching you key to the on and off position three times quickly and leaving it in the on position on the final time (note, do not take the key so far that it tries to start the engine). So start with the key in, and engine off, quickly turn the key to on, then off, then on, then off, then on and leave it there. Now watch your check engine light. It will blink out any codes that may be stored. The blinking will have breaks between each code and each code is a two digit number. For instance, blink short pause, blink blink, long pause, blink, blink, blink, pause, blink, blink, would be codes 12 and 32. I believe the final code is 55 and just simply means "end of codes". That should at least tell you if its an issue the ECU has detected. You can do a quick google search to find out what each code it spits out means. As for a guess as to why it isn't idling...I've seen everything from a failing fuel pump (inadequate pressure), to a clogged EGR valve cause this. Could be quite a few things unfortunately. Good luck!

Hi there,

Your engine does indeed have an Idle Air Control (IAC) Valve.

It is a sensor bolted to your throttle body - look for an electrical connector.

A malfunctioning IAC can cause improper idle of your engine.

sorry but their are no diadnostic codes with this number in the manufacturers codes i have
P0505....Idle Control System
P0507....Idle Control System RPM Higher Than Expected
but i have found these generic codes for you if they help

P1505 - Idle-Speed Control Valve Closing Solenoid Control Circuit Electrical
P1507 - Idle-Speed Control Valve Opening Solenoid Control Circuit Signal Low

The knock sensor will cause the ignition timing to ******, which will cause a lack of power, however, it's important that the engine camshaft/crankshaft timing was set properly when rebuilding the engine, if this is off, the engine will have no power and you could set the knock sensor code.

Hope thats help.