What sensor is this? (Vacuum leak)
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What sensor is this? (Vacuum leak)
Hello HT. So I noticed a very loud vacuum leak coming from my engine, and I found out that it was coming from this little black sensor near the intake manifold. If I hold my finger over the circular part of the sensor (shown in red), I can hear the idle drop down. Any idea what goes there or what the sensor is for?
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Re: What sensor is this? (Vacuum leak)
That's not the IAB solenoid, it's the evap purge solenoid. One vacuum line goes to a nipple on the intake manifold, the other goes to the charcoal canister on the firewall. If you're not going to use the solenoid (it wont throw a code when using an OBD1 ECU simply plug that port or remove it entirely and plug the nipple on the intake manifold.
#5
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Re: What sensor is this? (Vacuum leak)
That's not the IAB solenoid, it's the evap purge solenoid. One vacuum line goes to a nipple on the intake manifold, the other goes to the charcoal canister on the firewall. If you're not going to use the solenoid (it wont throw a code when using an OBD1 ECU simply plug that port or remove it entirely and plug the nipple on the intake manifold.
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Re: What sensor is this? (Vacuum leak)
Thanks a lot. I'm just going to remove the solenoid then. However, there is a little hose (in the picture) that connects the solenoid to the IM. I've been pulling on that hose, but it won't come off. Is it supposed to be like that or will it rip if I keep tugging on it?
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Re: What sensor is this? (Vacuum leak)
That's not the IAB solenoid, it's the evap purge solenoid. One vacuum line goes to a nipple on the intake manifold, the other goes to the charcoal canister on the firewall. If you're not going to use the solenoid (it wont throw a code when using an OBD1 ECU simply plug that port or remove it entirely and plug the nipple on the intake manifold.
Not saying you're wrong, just looking for clarification for the future.
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Re: What sensor is this? (Vacuum leak)
What's listed as the purge solenoid isn't, it's the vacuum actuator for the secondary butterflies which you can clearly see in the second pic, The manifold shown has no evap purge solenoid (JDM manifold)
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